Last time I tried to get on a horse, it was too big for me to get on from the block, so we took him to a gate nearby. I climbed on top of the gate, holding onto a tree branch for balance, lifted up my leg to get on the horse and he decided to move, leaving me hanging in mid air from a tree branch. I then fell in some nettles.
So, though Shadowfax is a beautiful horse, I fear a pony would be more appropriate to my height.
Is Bill for sale by any chance?