Zipp up and

Three men were standing side-by-side using the urinal. The first man
finished, zipped up and started washing and literally scrubbing his
hands...clear up to his elbows....he used about 20 paper towels before
he finished. He turned to the other two men and commented: I graduated
from the University of Michigan and they taught us to be clean.

The second man finished, zipped up and quickly wet the tips of his
fingers, grabbed one paper towel and commented: I graduated from the
University of California and they taught us to be environmentally
conscious.

The third man zipped up and as he was walking out the door said: I
graduated from the University of Wyoming and they taught us not to piss
on our hands.