I have trained my dog to do this for basic things like food, walks, and water. The best thing about it is that he doesn't whine when he wants something anymore,

I have trained my dog to do this for basic things like food, walks, and water. The best thing about it is that he doesn't whine when he wants something anymore, he'll just press a button and if we tell him no he will just try again later instead of whining for half an hour