I have come across a few horses in my working life that were committed wind suckers or cribbers, but I have never owned one so you can take my comments with as many grains of salt as you like.
While MBPS is a medical term used to describe a condition involving a child, I suspect a similar (albeit undiagnosed) syndrome exists among some horse owners by substituting the child with a horse.
Horses are not futurists. They can’t see into the future or read our minds and intentions. So when we ask a horse for something the very first time, they don’t know if or even when it will ever stop.