Tom Selleck is sitting down with Rach to talk about season six of his CBS show Blue Bloods, and he’s also discussing his family’s love of horse-riding – which once found him riding a horse who was high on marijuana!

The former Magnum, P.I. star says he was riding a horse on a beach in Mexico for a commercial shoot. The horse wasn’t behaving, and he later found out that the horse handlers gave the horse pot! Watch to hear the hilarious story!