Same approach as above: squat down, get to business. Kind of interesting the contraptions that are taken with in this regard! (I suppose it would depend entirely on the type of camp you are setting up: base camp, spike camp, bivy-hunt with a different camp every night).
A couple of tips:
1. Wait a little bit longer than normal, so that less work is involved. (However, I would not suggest waiting until the turtle is 'frantically' poking it's head out to get down to business, especially when dealing with multiple days of mountain house-type meals......that's asking for trouble.....)
2. Make sure your pockets are cleared out; more important if your pockets are shallow/not so deep. (A "guy I know" once had his rangefinder fall out of his pants pocket, eyepiece-down, into his fresh steaming pile.....he used his rangefinder significantly less on the remainder of that trip.....what a dumb $hit!)