Four of my five boys love to kill the little red dot. The fifth looks at it and goes "Meh". The other boys will group hunt it though. It is a great game. They even know the sound of the drawer that the dot lives in and will come running when I open it.
Last year I dog sat my sister's four month old puppy while she had surgery. My two dogs are old and slowing down, so the puppy didn't get enough exercise to wear her out before bedtime. She too loved the little red dot, so I had the brilliant idea to take her and the laser pointer outside. I ran that puppy in huge circles all over the yard. I assumed that she would quit when she got tired. Nope. I finally quit because I got tired. I took everyone inside and put us all the bed. The poor puppy laid there and panted/heaved for at least 45 minutes. I felt HORRIBLE.
I almost killed the dog with the laser pointer! My nieces might never have forgiven me. Mom goes in for scary surgery and Aunt Wessie kills our dog. Great memories.