What I hate the most is going to a gi school and having to wear my brown belt, although only training in gi for about 19 times.  But a belt is a belt, I tell myself.  If I'm brown in jiu jitsu, it doesn't matter whether it's gi or nogi, I should still rep the brown belt.  And then I think to myself, "the more I get thrown to the wolves, the sooner I'll become a wolf..  And that's that.  Against the mendes brothers, I got caught with a wrist lock and GUI got the straight leglock, only after I let him have the heel back.
Moral of the story: train with the best, get mashed by the best, and you will be a wolf before you know it.