Grocery Store - Interior - Day - The Fourth of July
Cashier: "Picking up a watermelon for the big BBQ, huh?"
Me: "Yup. I hope it turns out to be a good one. I don't really know what I'm doing, picking out watermelons; I just sort of slap them and listen to the sound for some reason. I don't even know what I'm listening for."
Cashier: "Looks like a good one to me!"
Me: "So watermelons come from the Sahara Desert. They grew naturally around oases, buried in the sand. Arab traders used to gather them up and load their saddle bags up with them to take across the desert. Isn't that wonderful?"
Cashier: "Noooooooo, it isn't!"