 Due to unusual heat in Buffalo in May 1975 and the lack of air conditioning in the Buffalo Memorial Auditorium, parts of the game were played in heavy fog that made players, officials, and the puck invisible to many spectators.During a face-off and through the fog, Sabres center Jim Lorentz spotted a bat flying across the rink, swung at it with his stick, killing it.It was the only time that any player killed an animal during an NHL game.