A few years ago in a p store I was talking to my gf. She was asking what all the ethernet colors meant. As a smart ass I told her:
Red is for fire proofing
Yellow is fastest
Green saves 50% electricity
Blue is water proof
Black is the most secure
Gray is generic
Orange is made by the prison system
Pink makes video look better
she was like "wow really?" and while I was shaking my head, the guy that was standing near us listening, put down his gray cable and picked up a yellow one and walked away