I need ideas for a school prank

[KaFo]

Depends on your sprinkler system, we had one where it was enough to go close with a lighter and just heat it up for a time. But it also depends on the sprinkler, at our school when you triggerd one of them, the others in a certain radius went off too, but not all in the whole complex.
In one of the companies I worked all of them went off but they were triggered by smoke.

And yeah, to know how they did it in "Hackers", watch the Movie :-P

[Cory]

Pranks like that can get you in serious trouble.

Pulling Fire alarm. -Illegal, unless there is a fire.

I doubt sprinkler systems in school are attached to some kind of network if they're it's local; not remote as in a specific computer only. (The school I went to anyway) simply way to trigger is to have a long lighter and find a spot for where you won't get caught.

but again, don't do it because depending where they're located it's going to cause more damage then anything including computers and that's when they start doing budget cuts.

and you can actually be tried as an adult and will be on your record.

Vaseline, someone might fall and hurt themselves, if someone breaks there neck and if they see you do; Consider it involuntary man slaughter and your life is over, because of a supposedly harmless prank.

Only one, I think that would be fun, can't get caught doing is simply maybe do something within the computer network; Lock it down and say a 'Message' or some sort, I'm not sure how the computer network setup as they're all different, but this is what I do.

Like for instance, I crashed the firewall at school, was down for awhile and all those 'Blocked Sites' became unblocked.

[chrishdman87]

Put superglue in the keyholes, so it'll be impossible for them to unlock the doors, and they'll have to break the windows to get in.

[Kedzi]

Fuck their gf's?

Good call, I second that

[ibby]

get a firecracker cherry bomb.. W.e bullshit they call, light one and point @ someone and yell "(He/She) Haz A GUN!"

[XForce!]

Burn da fucking schooool!

[Djlatino]

Good call, I second that

You're still alive

[Ashleyuk1984]

Stink bombs, they are always a good prank !!!

[VandalizedHosting]

my friend is walking around with some stink liquid and pouring it all over the school lol

[Loget]

Fill a water gun with people's jizz and shoot it.