Which is weird because FB knows a lot about you and can target its ads perfectly. I mostly get ads for stuff related to things in my interests/activities (e.g. diving/snowboarding shops, geek stuff) and dating services (since I am listed as single). But occasionally I see one that's completely off the wall, there's no need for it really. I just downvote them, if everyone did the same they'd disappear.
Well, yes and no. It depends on the product I guess. They just need to be smart and include (say) the name of the album or the caption of the photo in their ad targeting algorithm.
I get a lot of bizarre adverts on FB. I'm listed as married and I get ads for dating services, also I get ads asking if I want to make $80/hr and crap like that. Ironically I never got any diet pill adverts and I'm possibly their perfect market right now since I gained a lot of holiday weight.