Drinking Buddies

This is from Carrie at the Moon Connection. It's a good one.

Bud and Jim were a couple of drinking buddies who worked as aircraft
mechanics in PITTSBURGH. One day the airport was fogged in and they were
stuck in the hangar with nothing to do.
Bud said , "Man, I wish we had something to drink!" Jim says, "Me too. Y'know, I've heard you can drink jet fuel and get a buzz. You wanna try it?" So they pour themselves a couple of glasses of high octane hootch and got completely smashed.
The next morning Bud wakes up and is surprised at how good he feels. In fact he feels GREAT! NO hangover! NO bad side effects. Nothing!
Then the phone rings.
It's Jim. Jim says, "Hey, how do you feel this morning?"
Bud says, "I feel great. How about you?"
Jim says, "I feel great, too. You don't have a hangover?"
Bud says, "No that jet fuel is great stuff -- no hangover,
nothing. We ought to do this more often."
"Yeah, well there's just one thing."
"What's that?"
"Have you farted yet?"
"No "
"Well, DON'T, 'cause I'm in Denver