It's pretty shocking to say the least - an actual referee pulling an actual gun out during a football match.
But that's what happened when referee Gabriel Murta was allegedly attacked by players from the lower league club Amantes de Bola, (in a match against Brumadinho) by a player who refused to leave the pitch after being given a red card.
The referee was held back by linesmen (and a goalkeeper, for good measure) but nobody was hurt. The Referee's Association wrote the whole thing off as Murta "feared for his life".
Murta is due to be assessed by a psychologist and could be suspended or banned...