A city garbage man strangled a 37-year-old for allegedly taking advantage of his teen son, cops said Tuesday.

Patrick Molfetto, 46, was arrested Tuesday and charged with criminal obstruction of breathing, assault and harassment, according to the NYPD.

Molfetto went after the 37-year-old victim, attacking him after his teenage son told him the man had taken advantage of him, cops said. No further details of the assault were released.

What happened between the teen and 37-year-old or when was unknown but cops said that was also part of their investigation.

Molfetto was not working at the time of the incident, according to a spokesperson with the city’s Department of Sanitation. The department may take disciplinary action, pending an internal hearing, the spokesperson said.