Assuming he is sitting in the normal position and not squatting, there is a small stool that a few folks use to put there feet on. A DC had one in his bathroom. He told me by lifting the feet up, it changes the geometry of the plumbing etc in the body and helps to move more crap thru the system. There is some validity, most folks will find a time, they think they are done, stand up and seconds later, they have another movement.

sorry to ruin the thread.