I guess the worst bodily function experience for me was in the late 1970's. Had an elderly brother in the car group (my car) who everyone loved. He was in his 80's and grew up as a sharecroppers son in the south. He had to use a catheter and bag for his urine and as we stopped in front of a house in a nice upper middle class neighborhood, he said he needed to empty it. I wanted to take him to a nearby gas station but he said he'd just empty it there. Sure enough he opened the door and dumped it right on the street. I didn't know what to do but it was too late. I hoping no one saw him and would call the cops. Me and the other brothers my age had a good laugh about it later.
HappyDad