So cute! Little Rover gets his own website full of crap dedicated to now letting him drown in the wading pool! PetGadgets.com has a Pool Alarm that notifies you when Old Yeller has succumbed to the hydrophoby and decides to go for a mad-eyed swim.
The Pool Eye sounds an alarm when anything—a baby, a monkey, or a dog—falls into the water. At $119, it might be cheaper to hire a cute lifeguard, but that's up to you.