They do say "Never work with children or animals" and on this occasion I might agree! Underwater dogs can be fierce when they are chasing their ball and my head takes the brunt of it. It's worth it though to get the amazing expressions the dogs make underwater.
Doggie pools are springing up all over the country or if you're lucky enough to have your own outdoor pool, and your dog swims and puts his/her head under for the ball, you could have your own underwater dogs shoot. Get some amazing shots of your pooch underwater!