I've had plenty of flats, but I just throw in a new tube. The only time I've bailed is once when I had the entire side of the tire blow out for about 4 inches.

I got really good at changing flats when I got a road bike this year. thin 23s at 120PSI seem to flat a lot more than thick walled 32s at 40 PSI... I probably had 6 or 8 flats this year - I probably had a total of 8 flats in the previous 8 years before that, except for one fateful day when I had a bad rim strip and didn't realize what was up, and had 5 flats in one day. I started patching on the road which is never good.