Jerry Lawler

Between scenes in Man on the Moon (1999) actor Jim Carrey remained in character as Andy Kaufman and spit on pro-wrestler Jerry Lawler, just as Kaufman did in 1982. A stunned Lawler reacted by grabbing Carrey by the hair and jerking his neck and sending him to the hospital. (This was later revealed to be a publicity stunt to promote the movie.) In 1982, Lawler also sent Kaufman to the hospital for spitting on him. Lawler has since revealed that not only was his feud with Kaufman staged, but the two were actually good friends.
In 1999, he broke character and rushed to aid Owen Hart, after Hart fell from the rafters to his death. Later on that year, Lawler broke character again and rushed to the aid of fellow wrestler, Darren Drozdov, when an accidental move caused Droz to be permanently paralyzed from the neck down.
Suffered a heart attack, on September 10, 2012, during WWE Raw (1993) broadcast.
On the episode of WWE Raw in which "Stone Cold" Steve Austin attacked Mr. McMahon in his hospital room (and whacked him in the head with a bedpan), Lawler had to take his headset off so the television audience wouldn't hear how hard he was laughing.
Was disqualified when he piledrove comedian Andy Kaufman in their 1982 match in Memphis, where the piledriver was illegal.

[when asked if Stu Hart was betting that Owen Hart would win the match] He gave up betting after the Civil War.
[on Owen Hart running away from Stone Cold Steve Austin] Looks like Owen opened up a can of haul-ass!
She wants me. I can read her like a book, but I prefer the Braille edition.
You know J.R., obviously the only exercise you get is stretching the truth or jumping to conclusions.
Andy Kaufman's mom wanted a girl, his father wanted a boy, and they were both satisfied!