Something I saw earlier, a perfect example of what people should NOT do.
http://strangeris.deviantart.com/art/Fucking-scratchers-263505506
I understand why the original tattoo artist is pissed off.
First, stealing a tattoo design that was not intended to be copied just tells the world you are moron. If you want a ready-made design, there's tattoo flash designs, they are made to be copied. Photos of tattoos made especially for someone are not.
Second, make sure your tattoo artist knows their job, otherwise... Urgh.