Cr**********p!
I had a stinginess-related accident today. Well, not exactly accident. More like an incident. My rear tire blew up on me, as i was going up a hill, about a mile from work.
And why did it blow up, you ask? Because i was too cheap and didn't follow my mechanic's suggestion to replace the tire as it's worn out.

AGH!
Moral - take care of your tires! And don't stinge out!