Was helping a buddy wire his shed in Austin and the breaker kept tripping... turns out I forgot the neutral bond | Trades And Services - Freelance Forum - The Community for Independent Professionals
My buddy Mike locked his keys in the car with the engine running once, we had to call a locksmith and everything. After that I started keeping a spare key in my wallet and it's saved me at least twice. Little stuff like that just makes you feel less dumb when it happens again.