There was DEAF Turnier. A hearing coach yelled around, he even yelled the other parties. the hightlight: In break time he went to the deaf referee and asked for whistle. (coach was choosed in next play as a referee)
Deaf referee: .....*look speechless thinking hard how to say* .....uhm sir...we dont NEED the whistle...hope you know why?
Coach:... after then, he was quiet in the next play :D amusing.