I hate when guys get highlights. It just seems like a really girly thing to do, in my opinion. I remember talking to a guy in high school, and he randomly said in the middle of the conversation, "I need to get my highlights redone, my roots are showing." Seriously?! I don't even talk about root touch-ups with my female friends.
I wish guys would just leave their hair alone, it looks better when it's natural.
I wouldn't reject someone if they had natrual highlights but if it was two stark colours I wouldn't like it. I like two-toned hair though, like, I knew someone that had black hair with a stripe of red and it looked great. (: