I know tequila has damn near put me in cuffs more times than not... not that I ever started shit, but it quickened my willingness to shut a muthafucker up. Never got that same sort of reaction drinking anything else.
I'll 3rd that. Like Shane, I'm pretty much a happy drunk, but mix in tequila and I turn into 'likes to fight' guy. As such, I never touch the stuff, other than doing a shot every so often.
Tequila turned me into a, damn, going to bed earlier than normal tonight .... since my girlfriend is ready to make her clothes fall off earlier than normal.