My son is only two - so I won't hand him a wrench as he's more likely to whack the car with it to make a new sound than he is to be helpful - but I always crack a smile when he talked about Daddy's RACECAR! on the way home.

If you start making a habit out of wrenching on your own cars and decide to kiss the warranty goodbye - I suggest you consider investing in two invaluable tools: a decent voltmeter and a factory service manual (more than everything you've ever wanted to learn about your car). It's great for things like jacking points, resetting TPMS modules, trouble-shooting things... even how to properly change the oil.