Q: We recently moved here from Pittsburgh, and we have an extremely important question about Sun City West: Why do residents put stones on their mailboxes?

A: We have heard of stones on roofs and stones on lawns, but we have to admit that stones on mailboxes was a new one to us. Of course, here at Valley 101, almost anything is a new one to us.

We considered examining this phenomenon firsthand, but the Valley 101 mobile research lab was in the shop, so we set hand to telephone and called the Sun CityWest Visitors and Information Center, reasoning that we were, in a sense, visiting and in need of some information.

And we quickly had an answer, thanks to the exceedingly helpful Kay Johns, who works there.