The term ‘no good deed goes unpunished’ aptly applies to this hero plumber, who happened to be working a job in Midtown Manhattan when a British tourist was hit by a taxi cab and almost lost her life.

Bronx resident David Justino, rather than walk by the accident scene like so many harried New Yorkers did, or take out a camera phone to record the tourist’s trauma rather than help; jumped into the fray and fashioned a tourniquet out of his belt to save the woman’s life.

And what does he get for his trouble? "O'gotz!"

David Justino, who fashioned a tourniquet to keep Sian Green from bleeding to death after a taxi severed her foot in August, said his former bosses at Bass Plumbing and Heating Corp. gave him the axe for attracting too much attention.

David Justino, 44, used his plumber's belt as a tourniquet after an out-of-control cab severed Sian Green's foot on Sixth Ave. last month. Justino was hailed as a hero — but now says he's struggling to pay the bills after being laid off from his job as foreman of an under-construction Duane Reade in the Rockefeller Center subway station.

He said his bosses on the job, Bass Plumbing and Heating Corp., gave him no reason for the stunning move. But he said he knows why. "I lost my job for saving this girl!" said an outraged Justino. "All that commotion, my boss had enough of it and decided it would be better to fire me ... I think I would have been better off doing heroin than being a hero."

Management at Bass Plumbing could not immediately comment. Though Justino said repeatedly he was happy to have saved Green's life, he was torn about its consequences.

"I got a mortgage to pay!" Justino said. "I should have kept on walking like everybody else. I'd be putting in pipe instead of worrying about paying my bills."

For now, Justino said he's struggling to get by, running an aquarium shop in Yonkers, Aquarium Critters Warehouse — a gig he'd always hoped to do on the side. "Everything is upside down. I should be on a job, running men, making good money," he said. "Right now I'm in the pet shop trying to figure out how to make money."

The moment of the fateful crash, he had no choice but to act, he said. "She was going to die right there in the bushes," he said.

"Everyone was pulling out cellphones, videotaping instead of helping," he added with disgust. "I wasn't going to let that cab take her life. God's biggest gift is life … I wouldn't let this thing happen. Not on my watch."

Like I said, ‘no good deed goes unpunished!”

And as for you, have you ever done a good deed only to have it come back and bite you in the ass?