My opinion is that you should never judge a book by its cover.
People shouldnt be discriminated on because they have Tattoo's it doesnt make them a different person inside, they could be the best employess the company have had.
I used to work with an ex-Royal Marine who had the usual arm full of tattoos and the Head of IT was a stuffy old bird who was forever demanding he covered them up. Despite it being pointed out he was very good at his job she wouldn't change her mind. That was until the day one of her key business systems went down because she'd saved a few pennies when purchasing it ( something pointed out at the time by said ex-RM ). Strange how her attitude changed when she realised that the ONLY techie able to bring the system back from the dead was this ex-RM. It was hilarious watching him take a day to bring it back when he could have done it in a couple of hours while she was taking regular beatings from the board as to why the system was down.