EVERY MORNING DENISE PEREZ takes a walk with Jesse. After their walk,Denise gets ready for work. But before she goes to work, she drive Jesse to a nearby day care canter. He enjoys play time and takes a nap there, too. This may not seem unusual. Many people take their children to day care canters. But Jesse is not a child. He is a dog. Jesse's day care center is a place for pets.