Which cat is the culprit? Living in a multipet home can make it difficult to pinpoint some behavior problems. Here's why.

What is your first thought when you come home from work to discover that something in your house has been damaged--perhaps by one of your cats? You may wonder, "Who created this mess?"

Dog owners will often assign blame based on a dog's allegedly guilty expression. Cats, on the other hand, never found a place for that expression in their repertoire. Instead, they share in our wonder when we discover that something is amiss. Of course, if we begin a habit of returning home, discovering the damage and then shouting or running about the house, flailing our arms in despair, then even a guilt-free cat will learn to run. A cat will even learn to hide when we return home, …