Or You could do the same as my friend...
Buy some kind of joke fart sprayer in a store and spray (test) it somewhere. All school will stink. (All 4 floors if your school is that big)
this is what you do...
set the place alight!*(just kidding...)
hmm a good prank.....
maby...google?
xD
hmm....when everyone runs out the school u could have a hose faceing the door - entire school soaked - u laughing...
If by a hose faceing the door then do you mean by pawt holding it?
if yes then you forgot to mention pawt getting beaten up behinde the corner
Also
This is good to pull of on teachers and the princible or headmaster or whatever
If someone pisses you off, get a bit of dog poo, (the fresher the better) and stick it under their car door handle, so it can't be seen, when they go to open the door they get a handful of sh*t.
Or go here http://pranksite.com/c_11_0/SchoolPranks.html
117 page's of all different pranks to do at school
I just realised I have the stupidest name in the forum