wow dude i was thinking the same thing. I always take a shower after a bowel movement if i am going out because i'm so nervous about going out. I feel like i'd smell a lot worse if i didn't shower.
But then when i step outside i don't feel totally fit down there. Its like i feel like the sphincter muscle is leaking or somethin, even though it isn't. It just feels that way. Before i had this odour problem, i didn't have this feeling: I would go to the toilet and then completely forget about my ass (for lack of a better way of putting it).