I like your answer there, 'spaw! :)
Art, I feel the same way about network. I also maintain that impact and research aren't verbs, either.
I've never heard of anyone using the term "vertically challenged" seriously before. That truly amazes me. The only people I know that say it use it to describe themselves as a joke.
I've heard some black kids here refer to each other as "niggas." Most adult black people I know think it's disgraceful. I've heard girls, joking, calling each other all kinds of names (slut, ho, bitch, etc.). I don't really see why these are considered terms of affection.
We've talked a lot about the stereotypes related to schizophrenia and other psychological diseases and disorders in my Pysch class. People often get labeled as "crazy" and totally written off, even by family and friends. It's terrible that anyone gets treated like that, especially if it's a person who needs support. As to terminology, I always say whatever the official name for the psychological disorder in question is. That tends to avoid any euphemism or "political correctness" problems.