Best Office Prank?

For any that have seen the UK version it has to be putting the stapler in jelly.

My favorite is when Jim did the same experiment as dog's who salivate at the ring of the bell. Jim makes the startup noise on the computer and gives Dwight a mint afterwards every time. One time he makes the noise and Dwight puts his hand out automatically in the expectation of the mint.

I can't decide between two.. My two favorites are when Jim dressed up as Dwight and when Jim put Andy's phone in the ceiling and kept calling the number. I love this show!

well the UK version has to be the original and best. the characters are so brilliant. another one here that loved it when Tim put Gareths stapler in jelly. David advising him to eat it out "there are people starving in Africa, which I hate." hehe. basically I love it when Tim winds Gareth up. because Gareth is such a strange, odd person. (not advocating winding up people for being strange, but there's something so funny about Gareth when he's annoyed)

I think my favorite is when Jim kept adding nickels to Dwight's phone to make it heavier and then took them all out at once so he punched himself in the face. Oh good times.

My favorites are 1.(mentioned, but not seen) Jim adding weight to Dwights phone gradually, then removing it all at once, leading him to hit himself in the head with it. 2. Popping the exercise ball when Dwight was bouncing around on it 3. Putting all of dwight's stuff (including his wallet) inside the vending machine.

I agree with the faxes from future Dwight to present Dwight...that was great...