Why don't you do that prank where you pretend you are being enlisted into the Army and having to fly off to a far away country in just two or three days? This will usually get some people upset.
A fart machine in there desk
The good old bucket of water on the top of a door prank. :)
you can put jello in his shoes
Whoopie Cushion is always a classic!
pull a nice good prank
no No there was a guy named Isaiah Michael Jackson who thought it would be a good idea to dress as a Gorilla and pull a prank by snactching a kid.
Pranks on schools are a bad idea that can only lead to no good.
put glue in someones shoes or put pepper in someones sandwich
U put water all over his head
=== ===
do something funny
pull a prank on him