[AegisXOR]

People are, by definition, flawed.

Genetics is just not perfect. In some cases, this manifests itself as a physical condition—Down's syndrome, congenital myopathy, etc. In others, it comes out in mentality. Schizophrenics, people with bipolar disorder..

People who're slightly luckier are the ones with inherent personality flaws. The inability to tolerate racial, ethnic, gender or preferential differences, for one. Of course, they may just be plain irritating.

Either way. I don't fault people for it, I just shake my head and move on.. unless they're a hardcore Christian, in which case I may occasionally force them into questioning their beliefs before leaving. =]

edit: Also, fun fact: many hardcore homophobes are suppressing some sort of homosexual tendencies, deep down. And an even greater percentage of people who are indifferent, but awkward, around homophobia are. I know these things from experience.