The teacher has set the class an assignment. He stresses
the
importance of the particular assignment, and that no
excuses will be
accepted except illness (with a medical certificate) or a
death in
the immediate family (with a note from that member).
A smart-arse student pipes up: "What about extreme sexual
exhaustion,
sir?"
The class breaks up laughing, and when they settle down
the teacher
responds with:
"Well, Jones, I guess you'll have to learn to write with
your other
hand."