A childhood belief about fear of

I had a very strange thing about toilets... when I was very young in my mother's exercise class, I was in the child care in the back by the bathrooms and one of the toilets got clogged, but instead of just quietly overflowing, it made this really loud noise and was squirting water everywhere. I thought it was a monster, and to make matters worse since I was the oldest kid there I had to go up in front of all the exercising ladies and tell the instructor about it while the child care lady tried to turn off the water. After that I was terrified of sitting on or standing next to a toilet when I flushed it, I'd stand up and step away, reach allll the way over to flush, and then run away. This was particularly difficult in bathroom stalls where the door opened inward.