All horses are prone to claustrophobia. When flight is your defense, being in a box is a threat. Furthermore, Milton is off the track. The shafts of a cart might remind him of a start box. Would this be a problem?
We did not attach cart to horse. Greg led. Sharon and I each took a shaft, wrapped one of the harness straps around the pole and held on. Hence the need for a second set of hands. If the call came to Abandon Ship, all we had to do was drop our straps and step away.
Milton was completely amenable about everything, including the cart/harness arrangement pulling strangely around corners. We never took our eyes off the horse, but Sharon and I found our attention drifting sufficiently that we were exchanging stories in short order. Milton was that calm.
Gold stars for everyone!
Thank you for reading,