It has a lot to do with developing patience, not with the check-out person so much, but with your own pain that arises, the rawness and the vulnerability, and sending some kind of warmth and love to that rawness and soreness. I think that's how we have to practice.
The soreness I have is expected. I have total movement.
The best tonic for soreness is to do the movement that got you sore in the first place.
I used to not really like going to the gym when I was playing tournaments because I'd be sore and stiff. But the more you keep doing it, the less soreness you have. And you actually start to enjoy it.
You've got to love what you're doing. If you love it, you can overcome any handicap, or the soreness, or all the aches and pains and continue to play for a long, long time.
Crunches are much more effective than regular sit-ups because they specifically target your upper abdominal muscles rather than your hip muscles. If you're not used to them, they can cause soreness a day or two later, but it's a 'cool' soreness. A badge of honor.