You would think after thirty years of marriage I would know everything there is to know about my husband, especially given that I am a particularly insightful person. However, I tend to be a very heavy sleeper and things can transpire during the night without my knowledge, like the time a tree was hit by lightning and crashed into our roof.

So, imagine my surprise when our new neighbor, Donna, asked me why my husband, Carl, dressed up in a wolf costume and stood on the back porch howling every full moon. She said her children loved it but their teacher complained they'd be falling asleep at their desks the next day and could he maybe howl more softly? My husband denied it and, of course, who am I going to believe? Still, the next full moon, I loaded up on caffeine, feigned sleep, and sure enough, there he was, only it wasn't a costume. Well, that explained the frequent dog hairs in our bed when we didn't own a dog.

Anyway, I was mortified. Who else besides our neighbor knew about this all these years and why hadn't they said anything? Was our whole friendship network a pack of werewolves? That possibility suddenly gave the excruciatingly dull cocktail parties I'd endured for decades an intriguing twist.

But think about it: thirty years with someone you think you know thoroughly and then this? It really makes you wonder what else you don't know.