Ten years ago, professional tattoo artist Brian Finn decided to use his talents to help people — by providing free or reduced cost tattoos on his day off for people with scars caused by trauma

"It just kind of hit me one day that I had the tools to do something to help people. So, I kind of rolled with it," Finn says.

NPR first spoke with Finn in 2015 when he started tattooing clients on his day off.

After that interview, he says, the requests started pouring in. He's done thousands of tattoos for people wanting to cover up scars from domestic abuse, human trafficking, self-harm and more. Finn, who has been tattooing for more than 30 years, says tattoos carry different meanings for everyone.

"Some people, you know, they want to cover up a scar with a tattoo so they can't see it. But

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