Because I work with children dressed up as grownups, I am usually on my guard for pranks. But you let your guard down for one minute and BAM!
A client was in my office when I reached into my desk to pull out a card. Instead I grabbed a huge plastic roach. This lead to the screaming and throwing of the bug across the desk, followed by the quick, shallow breathing.
Nothing like a near heart attack to make you feel like an idiot in front of people you’re trying to impress with your intellect.