Crazy Cat

My older cat Thumper was acting a little strange a couple nights ago. He was staring up at my sliding glass door that led to my lanai area that I don't use. Normally I would think he's just looking at some little flying bug but this time there was nothing there and he had this look in his eye and body movement that told me he was gauging distance or something. He was rising up on his hind legs and stuff, then going back down and he did this for at least 10 minutes just staring off into space or so I thought. The thing he was looking at was the alarm wire for the sliding glass door. Once he got the measurments right, he jumped in the air and grabbed the wire and ripped it out of the sensor unit. I yelled at him calling him nuts and then had to attempt to fix the wire he just took out. Luckily it was a job that packing tape could fix. I put the wire in a place where he won't see it so hopefully he won't go looking for it again and making leaps of faith at the sliding glass door anymore.