I have 10 flying hours on my tip-up and I have already had one eye-opening experience, that could have caused damage of a different sort. While getting back in the airplane after fueling up, the tailwind picked up and the airplane started to roll forward. Fortunately there wasn't anything in the way, but I still scrambled to get to the brakes, not before the plane rolled at least 10 feet.
I don't mean to start a parking brake flame war, but I wonder if having a tip-up starts to make a better case for also installing a parking brake.