Yes, Cavendish probably isn't the sort of guy you hope your daughter brings home. It isn't unusual, though, for top sprinters to be markedly unlike Mother Theresa. Those who appear less confrontational than Cav are often just as likely to give their opponent's elbow a tweak at a critical moment...
EDIT are there really people here who don't understand what a two-fingered salute means? Surely this can't just be a Brit thing?