#3 Randy Orton attacks Vince McMahon
During his days as "the Legend Killer", Randy Orton was arguably the biggest heel in modern WWE. The above incident took place a few days before the 2009 Royal Rumble PPV, which Randy Orton ultimately won. Vince McMahon and Stephanie McMahon were in the ring and Orton came out and demanded an apology from Stephanie for slapping him earlier that day for no reason.
The Viper went on to insult Stephanie, calling her worthless and whatnot which, naturally, made her furious. Vince McMahon took control of the situation and asked his daughter to leave the ring.
He then told Orton that it was him who made his dad, Cowboy Bob Orton, a Superstar, and without him, Randy Orton wouldn't have been where he is today.
Vince McMahon went on to ask the Apex Predator to apologize to him and threatened to fire him. Randy Orton angrily replied - "You do not want to do that, sir!"
Fans in the arena started chanting "RKO", wanting to see Randy deliver his famous finisher to Vince McMahon. But Orton took it a step further, as he delivered his vicious Punt Kick to the WWE Chairman.
Stephanie McMahon and several WWE officials came out to check on Mr. McMahon, who was lying senseless in the ring as Randy Orton looked in disbelief as to what he had just done!