Ole  and Sven were  drinking buddies who worked as aircraft mechanics in  Minneapolis and one day  the airport was fogged in and they were stuck  in the hangar with nothing to  do. 
  
Ole said, "I vish ve  had somethin ta drink!" 
 Sven says, "Me too. Y'know, I hear ya can  drink dat jet fuel and get a buzz. Ya vanna try it?"  
So they pour themselves a couple of glasses of high octane hooch and got completely smashed.
Next morning Ole woke up and is surprised at how good he feels. In fact he feels GREAT!
 NO hangover! NO bad side effects. Nothing!  
The phone rang. It was Sven who asks "How iss you feelin dis mornin?"   
Ole says, "I feel great. How bout you?"
 Sven says, "I feel  great, too. Ya don't have no hangover?"  
Ole says, "No dat jet fuel iss great stuff -- no hangover, nothin. Ve oughta do dis more often."
Sven agreed."Yeah, vell, but dere's yust vun ting."
Ole asked, "Vat's dat?"
Sven questioned, "Haff you farted yet?"
Ole stopped to think. "No "
 "Vell, DON'T, 'cause I'm in Iowa"