The American Journal of Physiology reports that human and animal extremities contract and expand during episodes of heat and cold. This was evident years ago. Coaches prevented us from swimming when baseball games were scheduled. On one occasion, Nicky Sudano and I were killing time before we suited up for the evening game. Nicky had received a new BB gun that replicated a .45-caliber pistol. Howard Booher pastured a stallion behind his barn, adjacent to Lutz’s swimming pool. With the stallion’s extremity exposed Nicky quipped, “OK Shing, the first one to hit it, buys pop at Pete’s store!” The first shot missed, the second too, but the third hit the mark. The horse turned into a bronco with kids at the pool in amazement. More tomorrow.