Here's an odd story:
I had a problem a few years ago when I went out to dinner with some friends. We stopped at a bar for some beer and then walked a short distance to a sushi restaurant.
I ordered a spicy tuna roll and sashimi dinner. After I was done with my meal, I felt queasy. My stomach was curling. My IBS didn't help things much. I moved around uncomfortably in my chair. I decided to order an extra bottle of sake just so my mind was out of my stomach. As it turned out, that didn't help either. I was fairly drunk and fairly certain that I had food poisoning from the bad fish that was served at the restaurant. One of my friends noticed I was irritable while everyone else had a good time.
The urge to mess happened rather quickly and I jumped out of my seat and scrambled to the bathroom, which was occupied. Fortunately, I was wearing a diaper because I knew that I would be drinking in advance. Knowing that resolved half the problem. Obviously, I couldn't mess in the sushi restaurant, but outside, there was a crowd of people waiting for tables inside. I had to either find a spare restroom or a private place so people wouldn't be around to catch a whiff of the smell. I managed to walk about two minutes to an alleyway. Many of the businesses nearby -- that had restrooms inside -- were full of people and I couldn't risk the possibility of coming to another restroom only to wait outside the door for another five minutes.
I approached the alleyway. I noticed there was a homeless man who was squatting by a nearby dumpster. I immediately thought, "Is he taking a dump?" He looked like he was except that he had his torn brown pants on. Being drunk and oblivious, I asked the homeless man, "What are you doing?"
He replied to me, "I'm taking a shit, now how about some privacy, kid?"
I squatted down beside him and said, "I'm doing the same. Don't worry about it."
Not before long, I had a full seat -- and he definitely was full himself.
"Feel better?" the homeless man asked me before laughing and walking away. After he left, I managed to take my dirty diaper and chuck it in the trash can before returning to my friends at the restaurant.