Its quite really.

Ask them what hot drink they like, and buy it on the way to work, only add a few things or remove a few things when you order.

Open their stapler and superglue the whole inside so they staples can’t come out or can’t be punched out!

If they have a chair with wheels, remove the wheels. If they have a chair that does not have wheels, gradually remove a few millimeters a day of the legs.

Make an egg sandwich and hide it in their office.

Rub a little bit of Chili sauce on their office door handle. If/When they rub their eyes they are in for a sting!

If they have two or more drawers in their office, rearrange the contents of the drawers.. they will thing they are going crazy.. until they check the security cameras.

Burst into their office, hand them some flowers or chocolates and kiss them passionately. They say to them, “I love you _(insert random name here.. not their name)__”. They will get a real shock, and then they will hate you!

And finally.. my favourite one – Buy three pigs, and write number 1, 2 and 4 on their backs. Release the pigs in the work place and leave all the doors open (Except the outside door) When pigs 1,2 and 4 are caught, people will still be searching for number 3! So great! (Only works in large work areas..!)

Thanks for reading