“Mr. Goldstein, a slender six-footer, performed his antics at Grossinger’s, perhaps the premier Catskills resort, from 1948 until the hotel closed in 1986. He’d hold absurd exercise classes. He’d have a circle of grown men don silly hats and maneuver them onto one another’s heads, with one hand and without letting the hats tumble to the ground.” He was also probably the world’s master practitioner of the game Simon Says.