You people kill me! Doing your duty has to be one of the most basic bodily functions. Even tiny babies do it.
When my father was released from the hospital, after a triple by-pass, he was sent home with all sorts of instructions, but the one his surgeon concentrated on the most (after the medications) was the instructions on "how to do your duty." Pretty funny way of putting it, since my dad was retired Air Force and this was a military hospital. Anyway, the instructions were as follows:
Do NOT enter the bathroom or wherever until the load is AT THE UNLOADING DOCK. That means that you can feel it near the exit.
Take a seat -NO reading matter, no cell phones, no distractions. In other words, No nothing. This is not the reading room. You are here to get a job done in 30 SECONDS OR LESS. No kidding.
Let it go. If it is at the unloading dock, this should just happen.
As far as squatting in the great outdoors, if you follow the instructions above, you only have to squat for a half minute.