I love it when animals respond like this. It really fun with a Jack Russel.

I think I enjoyed watching this because I appreciate your Processing videos, which doesn't exactly make sense.

The cat looks a little frustrated. I would have been to, if I didn't know about laser light ;o)

You do it with a dog, islebehere? I tried with my Jack Russell Terrier with a red laser years ago, but it didn't work. I later found out that dogs are blind to the colour red. Do you use a different coloured beam with your dog? :)