<human>: Can you provide a brief overview of the text?

So I've had my JRT for about 2.5 years now and for the most part he is a great dog. It wasn't until a couple months ago my SO thought it would be fun to buy one of those laser pointers at the dollar store for cats and use it with my dog. Honestly at the time I didn't think anything of it. Anyway at first it was a fun, easy way to have him run off some energy but then he began seeing light reflections (like from glass doors) or anything similar and trying to chase it and start barking, it got a little annoying when he would just get in a stance to chase something at the back door and bark (I'm assuming trying to get it to come out). Since then we hid the laser light away because I'm not sure if I'm promoting bad behavior by letting him play with it or if its best to just avoid that whole thing?
<bot>: since introducing my JRT to a laser light he goes a little crazy over light reflections, not sure if I'm promoting bad behavior?