Rummaging through a random town and it's raining, quite stormy. I make my fighter open a random door to a random house and at that exact moment they get struck by lightning. In my infinite wisdom, I think that they triggered a trap, and get irrate that these inbred villagers had the gall to trap the door to their own home.

Years later I found out your characters can get hit by lightning during stormy weather if they're wearing plate armor.