One of our friends in Kansas had a dog that would get pretty excited and chase the tiny red light from a laser pointer. We tried that with Amy, but she didn't care about it. But now Kalki is super excited about spots of light that can move. I discovered this when I was working from my couch and he started jumping around, after the reflection from my laptop screen on the ceiling. Now anytime I sit down to work, he gets excited about the reflection from the laptop or the phone. Its actually quite funny to see him riled up about the reflection!