Can a car fix itself? TELL YOUR STORY!

I was explaining to my son that old cars are alive,with personalities, humor, most are temperamental (drives best when clean) Like a lot of kids today, he will take wikipedia's word as gospel. He claimed it was impossible for a car to fix itself. I cant count how many times I've been pissed off at my motorcycle or car, calling it bad names,hitting it opened palmed, etc. and it still giving me problems. The next day she'll be fine. She sleeps in the garage(if she only knew what went on inside) so the time apart brought her around. Anyhow, let us hear about your cars self-fix. Oh yeah, ^$@* WIKIPEDIA!