The Inventor

When asked, "what do you want to be when you grow up?", my youngest child will say "an Inventor". He loves to rig up things in his room, and he has motion detectors, electric eye/laser alarms and all kinds of fun stuff he likes to tinker with. I have to be careful when I go in there, I might set off a booby trap, stumble over a tripwire, or set off an alarm of some kind. He says he has to protect his stuff from his big sister, but there's not a thing in his room that she would be interested in. If I can't find the scissors, tape or string, I go to his room and rummage around. He has his own tool box, with real tools. He's built a motorized bug (with a photoelectric sensor so that he can control it with a flashlight), he's built a motor with magnets and batteries, and he uses all of the paper out of my printer to draw up plans for his inventions, which at the moment happens to be a robot. Once when he was 3, he took apart the bathroom scales, because he wanted to see how it worked. I could not figure out how to get it back together, so I just threw it away.