OK here's another one. So my brother-in-law was working for six months in Santiago, Chile, and the folks headed down to visit for a few weeks. Brother-in-law did part of his undergrad in Argentina, and is pretty fluent. They visit a farmer's market one weekend to stock up on groceries, and end up at a stall selling fresh chicken. The stall is a family affair - four generations manning the booth, with toothless, four-foot-tall great-grandma sitting on a stool at the back supervising things.
Brother-in-law says "Quiero pechas de pollo, por favor".
Long silence..... and then great-grandma loses it and starts laughing so hard she almost falls off the stool. He has just requested chicken tits.