It happened a couple of times. The one that sticks out was a stunning chica who came over with: "Buy me and my mate a drink then ...", in an expectant and disrespectful tone. I believe I laughed my tits off and turned away, which earned me a jab to the lower back before they scuttled off. It was worth it.
I like the logic of thinking that everyone must be 100% into them at all times; either a single child or came from a family of 9. Not personally interested; I'm not a virgin nor do I have low self-esteem, so the prospect of getting off with some newly liberated fresher ain't that interesting to me; throwing herself about for the first person to catch her. 15 strains of the clap.