Rocket Fuel

A couple of technicians were fuelling a rocket at Woomera when they noticed that the stuff smelt pretty good. "And it seems to have a bit of a kick in it", said one, as he licked a drop off his finger.
"Let's siphon off a couple of gallons for the canteen party," said the first.
The party was a considerable success.
Next morning the first bloke rang the other, "How do you feel?"
"All right so far."
"Have you been to the dunny yet?"
"No, not yet. Why do you ask?"
"Just to warn you. I'm ringing from Adelaide".