You had one job
“You had one job” is a phrase we’ve all heard. It’s usually used to describe a scenario in which someone botches something that (on the surface) appears to be the only thing they were supposed to do.
You knew you were only supposed to do one thing. Someone did just that and left an amusing little note on their desk. This is a fantastic example of this since the note clarifies that someone shouldn’t start pressing buttons unless they know how to unclog a jam.