For context: we’re a Swedish group, and “Per” is a very common Swedish name. In a previous adventure, the party explored a disused mine populated by sentient robots. Now, the party is doing some shopping in a city, and the party’s cleric is trying to pawn off a handful of robot power cores (small steel balls, each containing a grain of an extremely valuable, magical mineral). The gnome vendor he’s haggling with is clearly trying to scam him.
VENDOR: It’s no good, you see. The mineral is all used up. It’s second-hand.
CLERIC: (a little exasperated) Just give me a price.
VENDOR: I’ll pay you… one thousand gold pieces. (pause) Per ball.
DM: His name is Per Ball. (already cracking up) He signs his name when speaking.
Everyone at the table loses their shit for a good minute or two.