"...the dozen black students in the class didn't."
Oh come on, is that true?
Red hair is a recessive trait, isn't it? That's why it is so rare, so actually it would not be unusual to have two brown hair parents beget a red-haired child.
That's why they call it hair-red-ity, don'tcha know!
I'm sorry, I couldn't resist.
Yep.. absolutely true. He got canned for that remark back in 1979.