You know those moments, that you run across someone that expresses tolerance or intolerance about mental disorders.
Probably the intolerance more than tolerance.
But those times that you just have to talk about what a jerk the person was.

Like this story, for example:

I work technical support, phone technical support for a particular company.
One time I got a call, I don't remember the guy's issue... but he had been to one of our stores, and he ends up going on a ramble about how there were tech people working there that had autism (or Asperger's) and that they shouldn't really hire people like that because they can't communicate well enough to work with people.
I look back and know what I should have said, but I was just so taken aback I threw the general, "I can understand how that would be frustrating," canned response.

But what I really should have said, "I can understand how that would be frustrating (required empathy). We here at (company) are proudly an Equal Opportunity Employer, though," and then probably something about apologizing for the frustration he experienced, general required stuff, too.