A childhood belief about weeing and pooing

Once as a schoolgirl, I was riding home on a bus from a field trip, when I suddenly felt a need to poo real bad! I told the teacher, hoping she could get the bus to stop somewhere where there was a bathroom. But she just told me to hold it in and the urge would go away. I tried that and, although I almost shat in my pants, by the time we got back to school the urge had at least somewhat gone away. I don't even remember whether I poopooed any time for the rest of that day or not. What I do remember is that I got the idea that holding back one's dookey was the good and brave thinig for little girls (maybe boys as well?) to do. Maybe those who best succeeded would eventually become perfect and quit having to crap altogether, so I thought. During the years to come I remember being frequently plagued with stomach cramps, heartburn, and the like. Suspecting no connection at the time, I only regretted that I never completely perfected myself by quitting having to doodoo altogether. Only years later do I now suspect a connection between that belief and my digestive problems!