How to turn your dog into an idiot by using a laser pointer

We recently found out that Penny will chase a laser pointer, trying to catch it with her paws and mouth. She will run from one end of the kitchen, around a dividing wall into the great room, and to the front door with abandon. When on the wall, she will either freeze and point or try to bite it.

Maggie was sitting in a chair in the great room so naturally I directed the light onto her leg. Penny tried to catch it in her mouth, essentially using her doggie lips to "grab" the light on Maggie's leg.

I also put the light onto Thomas the grumpy old man. Penny didn't hesitate and went up to Thomas and tried to "grab" the light again. He growled at her and she recoiled but was still interested in trying to figure out where the light went.