Imagine Monty Python pulling pranks on each other during the April Fool’s Day:

Graham: would scare the other Pythons by unexpectedly appearing, shouting: “Boo” in the process
Terry J.: would be putting up signs with “Kick me” on the others’ backs
Michael: would cover his hand in a colour and reach for the others’ faces, then quickly apologises
Eric: would playfully slap others really hard, going mainly for shoulders, chest and bottom
John: would glue a penny to the floor and wait, until someone tries to pick it up
Terry G.: wouls slip caricatures of the other Pythons in their scripts