Actually.. apparently there's an indy wrestler named "Truth Martini" (I think.. something like that anyways) with the same gimmick and he's been around for quite awhile..
Anyways, point is, I HIGHLY doubt WWE, or TNA, steal gimmicks/angles from anyone. It's not rare for people to have the same idea. Besides, WWE has a good creative team (Ha!), why would they need to steal ideas from anyone?