annoyedI've written them all back and explained that this was a prank, and that their concern is not necessary, and can they please just discard my addresses, and wished them the best for the future. After all, I'm not mad at THEM, so no need to get venomous with them.
I've already received one reply that apologized and assured me that they'd not contact me again. This makes me happier. Hopefully, the other four will have the same attitude, the one that says "we don't want to be used for some asshat's idea of a prank."