In the Season 2 premiere of “Your Friends & Neighbors,” Jon Hamm’s Coop falls on his back while trying to steal a $100,000 Montblanc pen. After spending the first season trying to outrun the consequences of losing his job, his marriage and his place among Westchester’s elite, time — and middle age — have finally caught up with him. AdvertisementLike much of the show, the season’s details of middle age came from conversations Tropper heard around him during his years among Westchester’s ultrarich — many of them in the sauna or steam room. “There’s something fun about conflating the physical aches and pains of middle age with the more metaphysical aches and pains of middle age,” says Tropper. AdvertisementOne of Peet’s favorite scenes to film finds Mel, with help from Coop’s sister, Ali, tip over an annoying neighbor’s latrine toilet and end up in jail — a moment that shows how “Your Friends & Neighbors” captures the indignities of middle age.