I know she is stubborn and needs a little work out, but the man said he needed to do that then she settled down and accepted a rider. I was wondering if it meant he had to work her some, because she was being stubborn, etc. (?)
"I had to put her little marble back in her little socket."
To me it just sounds like he's meaning putting her back in her place, not nessicarily in a mean way tho. Like maby the horse had a tantrum and he just sorted her out....her playing up being the marble escapeing, lol and him dealing with her as in putting it back again. That's how I interprut it any way.