What Was He Thinking?

Every once in a while (okay...it's getting to be pretty often) you see something and you just can't help but think, "what was he thinking?".  I mean, he knows that tattoos are permanent, right?  I wonder if there was even a short thought about how this would look 5, 10, 30 years from now.  I guess probably not.  But I still wonder...what was he thinking?