Roy Keane is best known for his full-blooded displays at the heart of the Manchester United midfield for over a decade, captaining the Red Devils to many a trophy. Well, that and growing a ridiculously angry looking beard in recent times. The man affectionately known by the Old Trafford faithful as simply Keano is just as known for holding up trophies as he is for his horror tackles and angry scowl. To describe Keane's style as combative would be as much of an understatement as saying that he had a mild dislike for Mick McCarty. Where Roy is concerned, nobody is off limits when it comes to feeling his wrath, and this includes his opponents, his own managers, his own team-mates, his own fans, the press, and pretty much anyone who happened to catch him on an off day It's safe to say, Roy Keane is one of those people whose bed has many different wrong sides for him to climb out of each morning. Over a career that took in Nottingham Forest, Man Utd, Celtic and the Irish national team, Keanes CV is blotted my many acts of madness and moments that hed rather forget about. Luckily for you, this list is here to give you a timely reminder of some of the more outrageous, embarrassing and straight-up crazy acts of the feisty Keanes career. Safe to say, this is one man who you most definitely do not want to cross. Just ask Tom Cleverley.