Discuss WHY Mr. Guidry needs to know so badly whether the idea of Grant visiting Jefferson is his idea or his nannan's.

I think Mr. Guirdy suspects Grant might want to have influence, in a bad way, over Jefferson. He thinks Grant, as an educated black man, is full of rebellious ideas. He tells Grant that if he aggravates Jefferson, he (Grant) will lose his visiting privileges. Mr. Gidry is much more compassionate to nana.