After 15 years of writing this column, I've answered more than 3,100 questions from readers. It's impossible to choose a favorite, but I have managed to select a few of the more unusual questions from the archives:
Q: When Harley the hedgehog is in bed with me he sometimes spits on his quills. What's wrong? — L.M., Orland Park, Fla.
A: What's wrong? How about the picture of you sleeping with your hedgehog? I have no issue with people sleeping with dogs or cats, but move the wrong way, and the result might be a quill where you don't want one. Or worse, what if you crush your pet? By the way, Dawn Wrobel, author of "The Hedgehog: An Owner's Guide to a Happy, Healthy Pet" (Howell Book House, New York, N.Y. 1997; $12.95) explains that when hedgehogs like a scent — such as the smell of you — they literally lick it up. They create foamy saliva in their mouths and then wipe that scent on their quills.