When I was married I would keep asking my wife when was the last time she changed the oil in the brand new car I bought for her. She never knew. Because she never changed it. I asked how many miles she had on her car so I could figure out if it's time to change it. She never knew. I always know about how many miles I have, but she only knew it was more than zero. I took the car in for an oil change and would ask her every so often after that when she last had it changed. I kept telling her if she burned up the engine I wasn't buying her yet another new car. I finally had to take it in for an oil change after 35,000 plus miles without an oil change. It was years, not months, even though I reminded her every month. She got the car in the divorce and soon after, when the engine finally blew, had to trade her still like new car in for a used GEO.
Once during our separation she aired her tires up until one exploded like a bomb and blew the fender OFF of the car. It just exploded while it was parked, and it was interesting to see all the various layers of belts and things in the tire after they seperated. I took the tire gauge I bought for her out of her glovebox to check the other 3 tires and it broke the gauge. Then I used a special high-pressure gauge that maxed out at 250 pounds and it was much higher than that. She must have put 300-400 PSI in the tire that blew up instead of 35 like it was supposed to be. People that stupid don't deserve to live, let alone drive a car, but you can't have your license revoked just for being a Darwin Award candidate.
http://www.darwinawards.com/
She's so stupid she missed a turn less than 15 miles away from our house and drove hundreds of miles past it before she realized she was lost. She didn't see the highway. It's a good thing she had a map with her that I gave her. Too bad she can't read one. It took her 8 extra hours to make a 2 hour trip while I was standing there waiting for her to meet me. I was still there the next morning when she finally showed up. She covered 2/3 of Michigan east to west, and west to east, before going north 120 miles. She probably needed another oil change after that but I'm sure she never got one. She's also one of those women who waits until she's almost to the stop sign before she brakes. She ended up past the sign half the time, nosing into cross traffic. That's scary as hell but she never understood what all the screaming was about. But she's not my problem now. Thank God. Someone else can deal with her if she's still alive. I know some women are capable of driving but my ex wasn't one of them.