Maybe my dog is just a serious coward, but personally if I bought a dog bowl that had the recording of the sound of my voice that talked when he knew I was gone he’d end up wetting himself. That or he’d search the entire house trying to find me. Granted it wouldn’t stop him from eating, because well he is a pug and nothing can stop a pug from eating. Either way, I don’t really see a dog being comforted by the sound of your voice in his food bowl.
Besides that if you have a mischievous friend or spouse it wouldn’t take them long to change the message to something cruel. Your message can be up to 10 seconds long, giving you plenty of time to traumatize your pooch. It will flip on when your dog gets close, so there is no way for him to reach his food without your automated message. To pick one up it will cost you $29.95 from Hammacher and Schlemmer.