we once had a maths teacher we couldn't stand so one registration we all answered no to it.
me and my friends had a game do somthing that any normal teacher would give us dt's for in front of her it included standing on chairs, rolling under tables and walking round the class that or we would(the three of us) go across the class and slap this other kid over the head without being caught and without the kid noticing.

then there was the code when ever she said certain word we responded
1)arm swing across chest
3)Wink
4)very big nod
7)hitler impression
8)crane position
year 8!)Sneeze
yes-no)cough

we got the entire class doing it!!! it was so fun

Then after about half a year with her we complained to our head of year and the head of maths (there had allready been smaller complaints but ours was the biggest) the 15 of us were sitting in the room with them and their reply was "this will only be a temporary problem give it till the end of the term (one week)"
now she has been put to teach the lowest maths set!!!!!
YAY!