A teacher at a university reminded her pupils of tomorrow's final exam.

"Now listen to me, I won't tolerate any excuses for you not being here tomorrow".

"I might consider a nuclear attack or a serious personal injury, illness, or a death in your immediate family, but that's it, no other excuses whatsoever!"

A smart-arsed guy at the back of the room raised his hand and asked,

"What would happen if I came in tomorrow suffering from
complete and utter sexual exhaustion?"

The entire class was reduced to laughter and sniggering.

When silence was restored, the teacher smiled
knowingly at the student, shook her head and sweetly said,

"Well, I suppose you'd have to write with your other hand".