(I work at a paint-your-own-pottery studio where we fire the ceramics in our own kilns.)

Customer: “How long does it take to get the pottery back?”

Me: “It takes one week, sir.”

Customer: “Well I need my pottery in two days. Can I just take it home and cook it in my oven?”

Me: “I’m sorry sir, but that won’t work. The pottery needs to be fired in a kiln.”

Customer: “But my oven gets really hot.”

Me: “I’m sure it does sir, but it still won’t work.”

Customer: “But you don’t know hot my oven gets. It gets really, really, hot!”

Me: “Well, sir, we fire our pottery at 1800 degrees Fahrenheit.”

Customer: “Oh.”