Doing an organized MTB ride last Saturday, I was on a long downhill when a rock cut through my sidewall. Got that fixed but with the inch-long cut couldn't air the tire up too much without bulging the tube out... so I got another flat going through a dry stream crossing a little too hard. That one was two holes in the tube which I didn't realize until I had the tube back in and was trying to pump it up!
Snarl. One of these years I'm going to make that ride without any issues.
The other thing I noticed was that by the end of the ride, I was hating my eggbeaters. I'm thinking about going back to platform pedals on the MTB, just so I can shift my feet around and avoid that pain.