I just started working in a new office recently. It's a huge building (~50 stories), in a large metropolitan city. There is a food court in the lobby. Whoever is wearing a coat in the winter, generally doesn't work in the building. I've "dated" a few women in the last few months who I've met in the building through daygame approaches. None of them worked in the building, and I've never seen them in the building other than the day that I met them. I don't know if that was just by luck or if I subconsciously avoided the ones who actually work here.

I've seen a couple of girls lately that I wanted to make a move on- but hesitated because I'm almost certain they work in the building. I am 100% sure they don't work at my company. I rarely go to the food court unless things are super slow (once every two weeks-maybe), so I probably wouldn't see these women again. Am I being overly cautious or is approaching a bad idea in this case.