I find it much more rewarding to brag about how many flats I get, instead of how few. I still remember that epic ride with a group of friends, we had 8 flats in an hour an a half. Not only did we go through all the spare tubes, but also all the patches I had with me. We had to walk to a bike shop midway through to replenish supplies.

Another thing I find rewarding to brag about is flat replacement time. I can swap a flat tire in about 3 minutes, from hiss to riding again, with a frame pump. That's just with casual practise. I'm sure with some hard-core training I could get it better.