Rink death: Upset about rough play in his son's youth hockey practice, Massachusetts father Thomas Junta beat another parent to death at a rink. The dead man's son was involved in the rough play with Mr. Junta's son.

Soccer brawl: Three adults were arrested, one parent and two soccer coaches banned for life and two boys teams disbanded after about 30 adults in California got into a post-match altercation after an under-14 game. Sheriff's department reports said an assistant coach for the winning team apparently tried to pick a fight with a player from the losing team.

Bat attack: An art teacher in Connecticut beat his daughter's high-school softball coach with a bat after she was suspended from the team for missing a game to attend the prom.

Samaritan's fate: As many as eight adult spectators at a girls rugby match in California beat unconscious a 55-year-old coach who had come to the aid of a referee who'd been attacked by a fan.

Mother's display: The Greater Toronto Hockey League banned a mother from attending her 11-year-old's games for a season after she lifted her shirt and jiggled her breasts at the opposing team's fans.

Coach shot: A Texas father who'd been banned from attending football games for shoving and verbally abusing coaches shot and critically wounded the head coach.

Screaming parent: Jim Pierce, father of French tennis player Mary Pierce, once yelled "Mary, kill the bitch!" during a junior championship match, screamed at his daughter at the Barcelona Olympics until she broke into tears and punched two fans at the 1992 French Open. He's been banned from her games.

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