Parker and wheels

This boy is OBSESSED with anything with wheels. Trains, cars, trucks, strollers, carts, wheelchairs, anything. It gets embarrassing when he tries to push people's strollers or chases someone in a wheelchair. This day he spent about 1/2 hour just lining up his vehicles in straight lines. I would reach over and push one out of order and he would put it right back. It was pretty cute. I'm wondering if he is going to be a compulsive cleaner like my brother.