There aren't too many things that can brighten up a persons disposition better then seeing puppies frolicking about as they explore their surroundings. It usually doesn't take long for them to wear themselves out either. That's why one moment they can be chewing on each others ears, and the next moment be falling asleep as if they were a mechanical toy who's batteries have just died. It's also comical they way they will fall asleep in the middle of what ever it is they are doing, as if they suffer from some form of animal narcolepsy. follow the link...