je suis fatigué
A friend of mine was habitually ridiculed by his French teacher of all people over his weight problem and alternative life style. The classroom humiliation took the form of him being asked to say he was tired in French to which he would have to reply "je suis fatty-gay". Such role reversal of cruelty was unsettling to our young minds.
written by Al*sdair*McEwa*, approved by Log

"A moins que" was also a good way of letting stupid people announce to the class that they were wankers.
written by An*a , approved by Log

Ask your attractive lady French teacher to tell you what the French verb for push is. Hearing an attractive woman say pousser - pronounced puss-ay will lead to 13.5 boys* having a misty fantasy of their teacher standing at the top of some stairs, beckoning them through some dry ice and saying do you want to see my puss-ay?.
* Class size of thirty, fifteen boys and girls, minus the ten percent of gayyors.
written by Ri*har* Swa*, approved by Log