If I am going to be really honest, I don't know of a practical joke that is funny for everybody. For it to work, someone has to be the butt of the joke and it is never really funny for them. It is bad enough in a random type setting - the old candid camera type of thing. But when co-workers are involved there will be bad blood for years. People will remember the bad reaction to the stupid action, but never remember the stupid action that started it. In the worse case scenarios, people get hurt or scarred for life. I do not like practical jokes in any form.

Regards

Chas