#12 WWE - Sgt. Slaughter
A huge star in his time, Sgt. Slaughter had rejoined WWE fresh off a fantastic run as the heel tag team champion in NWA. After an initial heel run upon joining WWE, he was turned face for a feud with The Iron Sheik. Slaughter was taking off bigger than ever as an American hero and he seemed ready to take the next step at any given time.
He was so sure of it in fact that he asked Vince McMahon for six weeks paid vacation in addition to extra bonuses. When Vince rejected his demands, Slaughter walked away, convinced that McMahon would back down and beg him to stay.
It turned out that he was very, very wrong. Slaughter was cast out by Vince, and he had to spend the next few years with promotions such as the AWA and when he did return, it was as the “Iraqi sympathizer”.
Slaughter himself has at least acknowledged that he made a bad move, admitting to the mistake of thinking he could beat McMahon and it cost him dearly.