Mate of mine broke his neck and had been in hspital for three weeks and hadn't been for a dump. Eventually, in the middle of the ward, they rolled him on his side, chucked a supposetory up him, layed a sheet on his bed behind him and basically legged it. Couple of minutes later he was gripping the bed rail for dear life, white knuckling, while he emptied himself. It was taken away and weighed and they told him it was 14lbs. A whole stone in one go!!! Apparently a few windows needed opening afterwards...