What pranks can you play on people when they become Leader?

Wait till they fall asleep, then tear a small piece of paper.Roll it and then ticle with it in nose and ears and watch them slapping themselves thinking that is a mosquito.

Pour hotsauce on there lips, this will make them wake up SCREAMING.

Sitting in a small box from ‘eight to five’ can be pretty boring. You have to contend with the buildup of stress and fatigue as you draw closer to the latter part of the week. Work should clearly be mixed with a few stress-relieving activities. Of course, no other activity can relieve stress better than playing pranks on your officemates or even they are as a Leader of a Nation or whatever!

Pranks on people? Sleep Over Pranks? Is there any pranks?

It's just a joke, man! Do not get hurt of it!