Walking the dog last night, found a fob for a Cadillac with a house key attached. Off the top of my head I couldn't think of which neighbor has a caddy, i'm probably forgetting someone obvious, but it did have a war amps tag on it, so I dropped it in the mailbox.
Third time in the last five years I've found a set of keys, two out of three had war amps tags.
My wife pointed out that I never get them, and she does, and maybe my experience would suggest that I should use them, too.