As a Black person that tips at least 30%, and keeps it light- hearted with the waitresses and waiters, I would hope that you don't lump all of us into the same boat.

Please don't spit in every Black person's soup, bring out butt-crack steak, or other nastiness because of the actions of a few...some of us respect the fact that you're handling our food and dine/ interact/ tip accordingly.

It may not be racist, but the spelling and grammar is incorrect no matter what race you are.