I have a cross on my back with my mom's last name on one side and my dad's last name on the other. I was 18. My mom said "That's beautiful". Then i went to my dad's house, and all he ever said about my tattoo was "I'm not really a big tattoo person". I can tell he disapproves. It took me 4 hours. All black and white, across my spine.
Its the only one i have, for financial reasons. I'll get another one soon.