I knew a guy that called a number written on a $5 bill. He figured she must be a quality girl because it was on a five and not a single. She had a great voice on the phone so they made a date. He played guitar in a popular local band and there was a hip restaurant next to the club they were playing so they arranged to meet before the gig. He figured they'd have dinner and he'd be impressed to shit out of her with his playing so he walked into the restaurant and looked for the girl in a pink dress. There was one and she was enormous so he slipped out before she saw him. So during the show he sees the crowd part as the girl in the pink dress makes her way to the front where she glares at him during the entire setup. Afterwards she screamed at him for standing her up. He felt a little guilty but he said he felt worse if he had dinner with her and then dropped her. After all this his warning was to not call numbers you see on currency.