My favorite teacher

A guy walks into a bar and orders a beer.
Finishes the beer and says to the bartender,
"i bet you 50 dollars i can lick my eye."
the bartender agrees. The man pulls out his glass eye and licks it.
Bartender is frustrated. The man then says,
" i bet you 100 dollars i can bite my eye without taking it out."
the bartender agrees thinking he has won. the man takes out his teeth
and bites his eye. Bartender is very angry at this point. The man then says,
"i have to pee. i bet you 250 dollars i can pee into that empty beer glass and you can spin
me around while i'm doing it and i wont spill a single drop." bartender is excited
at this offer and agrees. So the bartender starts spinning the man around
as fast as he can. and the man is peeing all over the place.
On the bartender, the walls the counter, everywhere but in the glass.
The bartender is jumping around soaked in piss. A man several seats
down on the bar hits his head on the bar. The bartender asks "what's wrong with
him?" the man replied, " i bet him 500 dollars that i would piss all over
you and the bar and you would be happy about it.'

This is what my teacher talks about in math class instead of doing work.