Visible tats are a strong indicator of drug use. On the whole, addicts are not the most reliable employess. On a similar note, what is behind your psychology that makes you think the same as 99% of inmates who believe that visible tattoos are a good idea. I mean, I was sixteen once and thought a tat might be cool, but I am certainly glad I never acted on that urge. Just think that going forward you will be fighting an uphill battle in every interview you ever have because of your poor impulse control. About the only exception that I would make would be for people of Polynesian, Maori or other cultures where it is of cultural significance.