For a very long time in my life, I would resolutely refuse to use a public toilet for my bowel movements, a practice that caused me extreme distress on days the cafeteria at school served chili.
After carefully examining the illogic of this stance, I can now (reluctantly) eliminate in a public restroom.
BTW, my definition of “public restroom” is one which anyone can use: restaurants, gas stations, and (g-d forbid!) rest stops. (For the record, I have pooped in each of these situations.) The restrooms where i work, or in motels/hotels is NOT public. How’s that for illogic?