Better watch your gym socks! Across the city at least 41 thieves have been cleaning out health club lockers, where security cameras dare not film. Over the holidays there was a marked increase in gym locker break-ins, after which the NYPD released a poster bearing the faces of the suspected thieves. At least one of them has a gym membership (others buy day passes with stolen credit cards), and they’re expert lock-pickers, reports the NY Post. One woman who was caught demonstrated her ability to break open ten lockers in three minutes. Hardest hit have been NYC’s Equinox and NYSC franchises. In addition to cash and cards, "they go for high-end items like Rolexes, and they work all over town," a police source said.