Suddenly, Dr. Playground makes an appearance. The “y” in the shape of a stethoscope. Another freezing day, but that doesn’t stop Dr. Playground, the mobile fix-it truck that, presumably, keeps Prospect Parks’ many playgrounds in working order. But what to do since Dec. 26, when the snows came? No matter, Dr. Playground is spiffy as ever, sparkling clean forest green, no strained sewage for it, the color of the mini-growlers I had to hack out and around Vanya, twisting to get them out from under the car and I feel a twinge – uh, oh – but it’s a only temporary, put it down to my Jack LaLanne calisthenics, can’t afford an injury now.