Nothing like IT you're using actually being competent after you broke something (or more accurately pulling a pin that you didn't realize would blow up in your face).

Was dealing with a issue in the learning management system, decided to check a checkbox, ended up with every student receiving 1000% in the class. Went to our LMS support, said "oops I broke it", and they resolved it in 2 hours, and did what I was hoping for at the end anyways.