ycbm
Overwhelmed
If the horse goes back to the dealer, he will be no worse off than if I hadnt been daft and bought him in the first place.
But you did.
I hope that if you don't have enough connection with the horse to want to prevent him being passed from pillar to post in future, that you have enough concern for the next person whose heart/bank balance he is going to break, and the person after that, until someone does the right thing and puts him down.