Here's a video from a year ago showing AC Milan playing up to their stereotype.
Theres a break in play, whilst a player receives treatment. A fan runs on to the pitch in the San Siro, making the most of his chance to run around the pitch.
He approaches AC Milan's goalkeeper, Dida, and tries to embrace him as he runs past him, with one eye on the stewards who have started to chase him.
Dida tries to run after him, but is too fat and slow, so instead drops to his knees in agony and pain in one of the most ridiculous shows of play-acting Serie A has ever seen! And you thought AC only cheated the other teams - they cheat the fans too!