Here's a story about one experience with Facebook:
My job had sent me out of state for a couple weeks to Indianapolis. Absolutely nothing to do in the middle of winter, tons of snow on the ground, alone in my hotel room (though I did bring my bass and travel amp to keep me sane). So one night I head out to a strip club to have a drink and forget about the world for the night. I'm sitting there minding my own business at a table when this one dancer keeps walking up and talking to me, asking my name, where I'm from etc. I didn't offer her any money so it's obvious she was interested in me and she's getting really friendly, although it's just friendly because I was only there to have a drink and
look at pretty girls, no lap dances or anything. Toward the end of the night she offers me her phone number and heads back to the dressing room. I'm about to head back to my hotel when she suddenly returns, angry and confrontational. She says she looked me up on Facebook and found out I had a girlfriend, then demanded to know why I was there. In only an hour this chick had gone from curious stripper to jealous other woman and told me I had wasted her night when she could have been working