[amalcon]

Many years ago I worked at a pizza place. The town I was in had numbers in two different exchanges (the three digits between the area code and the final four digits in US numbers). Pretend the pizza place had the number 123-4567. The other exchange in that town was 321.

Naturally, the number 321-4567 just got some person's house. That person set up their answering machine message to say that "Due to a rash of prank calls, we are no longer accepting phone orders" without actually specifying who isn't accepting phone orders. Naturally people would show up in person highly confused about this.