[laotzu]

All humor involves pain.

I fall down a manhole......that's drama.
You fall down a manhole....that's funny.

Racist humor so elegantly lends itself to the task.

[tiki]

Not always pain but definitely reality.

Anymore it is racist to even notice that someone is black, it is okay for any other race or ethnicity but not black.

[dfwgator]

“Tragedy is when I cut my finger. Comedy is when you walk into an open sewer and die.” - Mel Brooks