I would go with the advice and skipping the wiping if your gonna shower to clean your bum anyways.Also I suppose you could poop more often so you don't have to go so much all at once.Btw, I have never heard of sitting on the toilet for long periods of time to cause problems like that. I usually sit there for awhile too, but that is usually because I am reading and don't like stopping till the end of the chapter.