Willie Perez, 42, had already been convicted for sodomizing a 15-year-old boy when he somehow landed a job cleaning trains on the Metro-North trains. But after being busted for allegedly impersonating a subway supervisor, the agency realized that they somehow overlooked the conviction, and Perez should never have been hired in the first place. NYCT spokesman Jeremy Soffin told the Post, "Metro-North has suspended Mr. Perez without pay and has begun the process of terminating him."

Perez allegedly donned a track worker's uniform and patrolled the L train, identifying himself as "Supervisor Perez." It's unclear why he pretended to be a subway worker, as the worst thing he seems to have done was convince another train worker to hold open the doors between cars because a "family had been separated." The MTA learned of the ruse this week when a line manager mentioned a "Supervisor Perez," and they realized there was nobody of that name on staff.

Perez was convicted of third-degree sodomy in 1998, and served four years. He is listed as a Level 3 sex offender with a "high risk of repeat offense."