So the other day I hear Brogan tell me “I need to change the batteries,” referring to a toy car he was holding. It was obvious he was looking for something to aide him in the task as he wandered through the living room, and then went up stairs. His search was actually keeping him occupied, so I let him be. Fast forward five minutes and I hear him coming down the stairs, but at a slower pace than normal and there was something clanking with each step. I come out of my kitchen to find my child walking down the stairs with a 5-pound Hitachi corded drill with a…