In most ordinary professions, ordinary people get fired for the most ordinary reasons. Perhaps they get caught stealing office property, or maybe they're just a bit useless, and take five days to perform tasks most can accomplish in an afternoon.
Wrestling, of course, is very different.
Extraordinary wrestling reasons include, but are not limited to: receiving your marching orders because your partner is cheating on you, a Twist of Fate that befell Matt Hardy in 2005; failing to calm down your "tired and emotional" colleague who retained his ambassadorial role, in the sort of morbidly hilarious patter that could only happen to Poor Ol' JR; suffering racial abuse, as Alberto Del Rio did in 2014; using the word "prick", when the word "b*tch" is the language de jour of the company's top babyface; performing your televised role in exact accordance with the script, as Muhammad Hassan did in 2005, when WWE could have just repackaged him as the Italian-American he was (or, you know, an act not defined by his ethnicity!); falling pregnant, because how are you going to bump with a fetus inside you, Dawn Marie, come on; popping for steroids when not even a performer (this was Billy Gunn and not, of course, Vince McMahon or Triple H...)
Brilliantly, this sort of thing has also transpired onscreen...