I say I have a thick skin when I don't--I'm really sensitive, especially when I care about the opinion of the other person.
My mom had an excellent B.S. detector, and she could tell someone where to stick it with a smile on her face and make 'em think it was her idea. My dad…it's easy to pull the wool over his eyes, but once he figures it out, he has zero tact.
I got the worst of both worlds: I have an excellent B.S. detector, and zero tact. I'm working on being a little more…reserved about it.