I don't use clicker training because I'm too old and set in my ways to learn
to coordinate the clicker (which I have), the instructions (bought the book)
and the treats. I tell my husbnd that if he ever has to identify my body,
check the pockets. I'm the one with the horse cookies & dog buscuits.
So, that said, I have taught my TWH gelding to urinte on command by treating
every time he "assumes the position".
The girl who helps us with our disabled kids, reports that her little brother
was having trouble getting his young mare to pick up her feet for him. They
startyed treating her for offering a foot. By the end of the second session,
she was willing to pick up as many feet as they wanted as many times as they
wanted.
It does work.
Nancy