Unsportsmanlike conduct in the context of "Verbal abuse"

A contact sport is any sport where physical contact between competitors, or their environment, is an integral part of the game. Examples include gridiron football, martial arts, and acrobatic sports. Contact may come about as the result of intentional or incidental actions by the players in the course of play. This is in contrast to noncontact sports where players often have no opportunity to make contact with each other and the laws of the game may expressly forbid contact. In contact sports some forms of contact are encouraged as a critical aspect of the game such as tackling, while others are incidental such as when shielding the ball or contesting an aerial challenge. As the types of contact between players is not equal between all sports they define the types of contact that is deemed acceptable and fall within the laws of the game, while outlawing other types of physical contact that might be considered expressly dangerous or risky such as a high tackle or spear tackle, or against the spirit of the game such as striking below the belt or other unsportsmanlike conduct. Where there is a limit as to how much contact is acceptable most sports have a mechanism to call a foul by the referee, umpire or similar official when an offence is deemed to have occurred.

Contact sports are categorised by the American Academy of Pediatrics (AAP) into three main categories: contact, limited-contact and noncontact. In attempting to define relative risk for competitors in sports the AAP have further defined contact sports as containing some element of intentional collision between players. They define such collision sports as being where: "athletes purposely hit or collide with each other or with inanimate objects (including the ground) with great force", while in limited-contact sports such impacts are often "infrequent and inadvertent". While contact sports are considered the most high risk for injury, in some sports being a major feature (such as boxing or other martial arts), limited-contact and noncontact sports are not without risk as injury or contact may come about as a result of a fall or collision with the playing area, or a piece of sporting equipment, such as being struck by a hockey stick or football or even a piece of protective wear worn by a teammate or opposition player.

In basketball, a technical foul (colloquially known as a "T" or a "tech") is any infraction of the rules penalized as a foul which does not involve physical contact during the course of play between opposing players on the court, or is a foul by a non-player. The most common technical foul is for unsportsmanlike conduct. Technical fouls can be assessed against players, bench personnel, the entire team (often called a bench technical), or even the crowd. These fouls, and their penalties, are more serious than a personal foul, but not necessarily as serious as a flagrant foul (an ejectable offense in leagues below the National Basketball Association (NBA), and potentially so in the NBA).

Technical fouls are handled slightly differently under international rules than under the rules used by the various competitions in the United States. First, illegal contact between players on the court is always a personal foul under international rules, whereas in the United States, such contact is, with some exceptions, a technical foul when the game clock is not running or when the ball is dead. Second, in FIBA play (except for the half-court 3x3 variant, in which individual personal foul counts are not kept), players foul out after five total fouls, technical and personal combined (since 2014, one technical can be included towards the total; committing another risks immediate ejection). The latter rule is similar to that in college, high school, and middle school basketball in the United States. However, in leagues that play 48-minute games such as the NBA, and in some leagues such as the Women's National Basketball Association (WNBA), players are allowed six personal fouls before being disqualified, and technical fouls assessed against them do not count toward this total. However, unsportsmanlike technicals in the (W)NBA carry a fine, its severity depending on the number of technicals the player has already obtained, and players are suspended for varying amounts of time after accumulating sixteen technicals in the regular season or seven in the playoffs.

A backboard shattering (also known as backboard breaking or backboard smash) is an accident or stunt in basketball. It occurs when a player performs a slam dunk with sufficient force to shatter or otherwise destroy the tempered glass of the backboard, often causing the hoop to break off as well. Games are usually canceled or delayed and it incurs a foul for the offending player and costs of cleanup and replacement. Shattering a backboard can be dangerous, sending various small pieces of the backboard glass flying, potentially injuring players, sideline press personnel, referees, or spectators. In the National Basketball Association (NBA), shattering a backboard during a game is penalized with a "non-unsportsmanlike" technical foul and a possible fine towards the player. The player may not be ejected, nor shall the foul count towards a player's total towards either ejection or suspension. The referee also has latitude to waive off the foul, if it is determined the shattering was accidental due to a defect in the backboard or its structure, the board was broken during a rebound of the ball from a jump shot, or if the player had no intentions to dunk with force.

Throughout the history of basketball there have always been athletes with the size and strength to slam dunk the ball through the rim. However, the first recorded NBA player to shatter a backboard, Chuck Connors (who would become far more famous as an actor), did not do so with a dunk. When playing for the Boston Celtics in 1946, Connors took a set shot during pregame warmups, hitting the front of the rim. Because an arena worker had failed to place a protective piece between the rim and backboard, the backboard shattered. All-star power forward Gus Johnson of the Baltimore Bullets became famous as a backboard breaker in the NBA, shattering three during his career in the 1960s and early 1970s. In the American Basketball Association (ABA), Charlie Hentz shattered two backboards in the same game on November 6, 1970, resulting in the game being canceled. An invention by Arthur Ehrat to create the breakaway rim with a spring on it led to the return of the dunk in college basketball.