I thought up an office prank. You design a shirt, such as a pink business shirt with a picture of the Pentagon on it. You hand them out to all the people who show up on time to work and ask them to put them on. A woman named Rachel hands out forms for them to sign. They get $100 initially plus a $100 bonus if they go along with the gag. Rachel disappears.
When people show up late for work, the early birds don’t tell them anything useful. They tell them that they have to sign a form before they can tell them what is going on. Rachel has the forms, but nobody can find Rachel. Film the late comers wondering around acting confused. This gag is expensive, so only a high budget television show could pull it off.