I remember an incident many years ago when I was a club linesman (no ARs then!) in England. The referee booked one of the other team's players and asked for his name. The player was totally incensed and screamed at the ref: " Ball@cks ! Ball@cks!!" Then realising he would probably get sent off, he suddenly changed his tone and in a much calmer voice added: "er....that's my name, Ball@cks...."