This thread has been very interesting. It makes me wonder if I should bother telling my dad that I have a tattoo. I'm totally independent so I don't feel that he'd have an issue there. He is older though so I know initially he'd have a negative or concerned reaction. However he's also reasonable, totally loves me, knows how hard I work and is very proud of that. Part of me just wants to tell him because he's not only my dad but one of my very best friends. The other part thinks that it's not worth the initial concern that he might have.
Just throwing in my personal experience.