In today's society, people who are smart and don't bother to hide it, don't seem to get treated very well. I have no doubt that he prides himself on not treating fools gladly and that at times he has bruised someone's feelings who didn't deserve it. Such is life. Approach a porcupine at your own risk. I've said before, and I think it's worth repeating, that what many people regard as the finest episode in TOS history ended up with everyone involved hating each other. I wonder if anyone ever asked him if he agreed with that assessment and what he would make of it.