The chap at the local Cobblers' has brown hair and eyes so pale green that they are almost yellow! I'd love to try to get a pic, but I don't know him, and if I ask, he'll probably think I'm a nutter! LOL!
You Should! Just be really casual and ask "Hey, do you mind if I take a photo of you?" and if he says no then he is a dick and not worth it and you won't care that you missed out on taking a photo of him and if he says yes then AWESOME you'll either succeed or not care, you can't loose!