Shorted the center pin of a transistor in the numerical display of one of those giant build a stack game at Dave and busters. Literally the first thing they had me look at after starting, and that that no one could figure out, I was testing various points with a multi meter when it slipped and bridge two of the legs. At first I was worried a really messed something up, but the dude that had been there forever was like “what’d you do‽ It’s working!”. Definitely a fix I wasn’t expecting.