Tomorrow's exam

A female lecturer reminds her students that there will be an exam tomorrow.

She says “Apart from a death in the family or a nuclear attack, I’m not taking any excuses for not taking the exam.”

A smart arse at the back of the class shouts out, “What if I’m suffering from complete and utter sexual exhaustion?”

The class erupts into laughter. When the class quietens down, the lecturer looks at him and says, “Well you’ll just have to write with you other hand.”