Thin-skinned or thick-skinned?

“Even with the nomination wrapped up, Trump remains thin-skinned and lacks self-discipline.”

Do you think you are thin-skinned or thick-skinned?
Do you want to be seen as a thin-skinned person or as a thick-skinned person?
Do you think that thin-skinned people are good at negotiating with thin-skinned people?
What do you think about thin-skinned, thick-headed moguls?