Well, for the yearbook deal, unless it was the dean, or head of school that can "do something" regarding your employment, give them the picture you want, the Sly One-I'm assuming.
Hat? I live in a hot, semi-tropical climate, and part of my job is to go on site visits to areas damaged by natural disasters. Other than that kind of "out in the sun" for hours type thing in 90+ degree farenheit weather, where I do use a hat, I depend and use a lot of sun screen, spf 30 or higher. There's one by Neutragena that is spf 70--that my wife and daughter use who are red heads and fair skinned. It's advantage is is give a really bright gleaming shine. Otherwise, it's spf 30, and no hat. I don't like them, and I've got a big head so no matter how large the hat, I get a line around my head that lasts about 15-30 minutes.
It takes a couple of months for the nay sayers to accept the fact that you've dealt w/ your mpb in a reasonable fashion, no drugs, no rugs , no plugs. It's your head not theirs, they better learn that and quick.