Q: A foolish animal to ask for, but our son wants a "pet" hissing cockroach for the holidays. We found several pet shops in Albany, N.Y., to get one. But what do you think of them?
— Sidney, Pittsfield
A: Back in the late 1980s, my wife Susan and I had the opportunity to visit the Smithsonian's Insect Zoo in Washington, D.C.,