Bunny, an American Eskimo, learned to turn off a light switch. She was about 2 or 3 years old. This photo of her in action, was taken around 1991 or 92. I just put her favorite treat on top of switch and told her to turn light off. Once she caught on, she did it without treats. Once in awhile she would go flip the switch, just so she can get a treat. She was a very smart dog. She would have been a great service dog. She greatly understood people that had limitations. She tolerated a lot more with those with mental or physical challenges than she would have with anyone else. A great dog.