I've learned that a black woman is coming for dinner, so I'm going to lock up all the silverware in the house.
Why do you feel you have to lock up your silverware?
I think it will be funny when she gets caught trying to get in the silverware drawer.
You should not judge a person based on the color of their skin, just as you don't want someone to judge you based on the color of your skin. Instead, you should get to know people individually.
I will do what I want because I'm white.
It's racist to aim your actions at a person because she's black. It's also really rude to try to embarrass someone who visits your home. You should welcome her and be friendly.