It also resonated with me. I was born with spina bifida that caused my incontinence. But the birth defect wasn't diagnosed until I was 13. Growing up there was no answer for why little Mo wasn't potty training. My mother was under the delusion that I was doing this, wetting and messing my pants, as a personal afront to her.
Her method for forcing me to train (which wasn't in my physical capacity) was to humiliate me every chance she could. I was in diapers and plastic panties 24/7 and she never missed a chance to point this fact up to anyone, her friends, relatives, strangers, etc. Other "baby" treatments included public changes and diaper checks, making me sleep in a crib until I physically didn't fit anymore, sending me out to play in the yard with nothing more than a diaper and a t-shirt on and making me tote an infant's diaper bag everywhere we went.
The other unfortunate thing was the medical community (I was a victim of military doctors) who constantly reinforced the idea that this was somehow all my fault. One Army psychiatrist actually told my mother, in front of me (I was about 7 at the time I think), that my toileting behavior was a little boy's revenge and I was mentally ill.
Even after the diagnosis (thanks to a new fangled invention at the time, the CAT Scan), my mother never forgave me for what I did to her. I divorced my parents in my mid-20s and not talked to them since.
Sad but true... but, hey, some one had to live my life and I guess it was my turn. No regrets, it is what it is.