Played cards Saturday night. Came out around 2:00am and I had a flat tire. I mean, flat. Not just low on air. Anyway, Mike busts out his little air compressor, and we fill the tire up. My plan was to get home, then just borrow a compressor, fill the tire, just to get me to the tire place to get my winter wheels put on. Then we could figure out what was wrong with it, and do whatever to fix it. However, I woke up Sunday, and the tire still had air in it. Full. Hmm. Well, I figured I would still swap out the tires today, but I was pretty sure that I would wake up this morning with no air. This morning, tire still had air in it. Full.

WTF?