[nkluksda]

I did that twice - first for a scope of my colon to diagnose just how bad my diverticulosis was, and the second time to prepare for surgery.

Dave Berry isn't that far off. After the first hour, one's rectum is extremely sore; one alternates between a very warm tub (just an inch or two - enough to give some warm wet heat to the affected area) and sitting on the pot. Explosive diarrhea is an understatement. Butt-squirts doesn't quite describe it. Suffice to say, it's not fun. It goes on for quite a while - and the worst part it, my guts cramped up trying to squeeze out stuff that wasn't there.