Three things:
1. I hate hecklers, and I do believe they should be hung upside down with a fork in their ass. Not because of their skin color, but because they do not respect the performer on the stage.
2. In spite of that, the performer has to be professional enough to control their temper when they are heckled. If not, they have no business being on the stage.
3. Michael Richards is a worthelss racist and I hope he enjoys his future career selling cleaning products in infomercials.