That's always pretty much been my feeling ^.I know plenty of people with tattoos who are extremely intelligent. In my opinion, it's a mark of a low IQ to believe that you can generalize intelligence on the basis of whether someone has a tattoo or not.
But go ahead and underestimate me. It will just be one more advantage I'll have over you.
People who mischaracterize me as stupid do so at their own peril.
They are only putting themselves at a disadvantage; why would I stop them?
I sometimes cultivate this perception deliberately, when it's beneficial to do so; when the IRS came after me about six years ago, I actually had them completely convinced that the reason I didn't file taxes for my entire life was because I didn't know how (semi-true), and because I couldn't read very well or understand technical language.