he has about as much screen time as he does in Pulp Fiction.
Basically he's a Pick-Up guy who comes to a bar,along with some other Mexican, to do a drug deal or something.....QT tells a joke and then something funny happens (I won't reveal it, cause it's a great scene)
Then QT goes to this hidden backroom and they do a drug deal....during the deal El Mariachi, Antonio Banderas, comes in and there's a shootout...then in the back room...(spoiler ahead)....well in the backroom the drug dealers think El Mariachi is working with QT, so this one dealer kills QT (killed in a similar fashion of Reservoir Dogs)
It's a good movie though.
DEsperado is a revenge movie, one of the best action movies I think. The opening sequence is the best though....it's an excellent scene mixed with the sounds of Link Ray's "JACK THE RIPPER" song with Steve Buscemi's monologue. Awesome sequence.
Plus Salma Hayek is fucking hot....I wish they would've done a better sex scene with her.....I hate "lovey" sex scenes with all the dissolves and candle light....stupid and un realistic.