Glad he made it though and "grew up" - it only speaks of "Your" proficiency as an "Instructor/Professor" - especially their ability to "Learn" from you . . .
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However, I hope you find this interesting and just as an FYI - you're going to have to change that "statement" in that syllabus of yours again, because I happen to know very well that "Blue" is found in "Natural" Hair color not just "on," more specifically - the color "Blue" is an undertone and/or part of the color spectrum of "Black" hair:
Black hair is the darkest and most common of all human hair colors globally. It is a dominant genetic trait, and it is found in people of all backgrounds and ethnicities. It has large amounts of eumelanin and is less dense than other hair colors. Black hair is known to be the shiniest of all hair colors. Black hair can be slightly rufous, soft black, or blue-black. Sometimes black hair can appear to shine silver-blue in the sun.[1] In English, black hair is sometimes described as "jet-black" or "raven black". The range of skin colors associated with black hair is vast, ranging from the palest of skin tones to an olive complexion to dark skin. Black-haired humans can have dark or light eyes. Black hair - Wikipedia, the free encyclopedia
P.S. Also, as another FYI: the reason why I know this kind of stuff - before I became a Social Worker and Counselor - My major previous profession was . . . Get Ready for this. . . since 1972 when I got out of High school I have worked as a Hairstylist/Colorist and I hold 4 different State Licensees in Cosmetology

. . .
Now isn't that ironic, to go from working on the "outside of the head" to the "inside of the head"
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Isn't it - WONDERFUL - how we keep sharing information ! ! !

Well at least - I hope it is
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