I was thinking asking a college professor out for coffee on campus, opinions?

So there is this professor who I see in the building from time to time and she is adorable, a bit older than me but I don't care she is very friendly to me and I think she likes me. Keep in mind she is not my actual professor, just one in the building and was going to ask her for coffee sometime on campus Because I am curious about her and would like to get to know her even if she is married or whatever. you guys think that's acceptable or no? opinions
I was thinking asking a college professor out for coffee on campus, opinions?
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