NYC straphanger attacks good Samaritan for waking him aboard Q train

No good deed goes unpunished.

A straphanger nudged a fellow commuter awake to keep his phone from getting stolen aboard a Manhattan Q train — only to get whacked with a cane for his trouble — according to cops.

Police on Monday shared surveillance footage of the wheelchair-bound belligerent they say attacked the good Samaritan on June 17.

The victim, 22, told police he was aboard a southbound Q train stopped at the Prince St. subway station at around 12:50 a.m. when he spotted his soon-to-be attacker dozing with his phone in his hands.

When the do-gooder nudged him awake, the sleepy straphanger struck him on the head with his cane, causing a nasty gash, according to cops.

Paramedics took the victim to Mount Sinai Beth Israel Hospital for treatment.

His attacker fled aboard his motorized wheelchair towards parts unknown, according to law enforcement.

Anyone with information in regard to this incident is asked to call the NYPD’s Crime Stoppers Hotline at 1-800-577-TIPS. All calls are confidential.