Clubbing

You survey the scene. After ordering a martini, you walk over to a table of three hot young ladies splitting a bottle of Cristal champagne. "Would one of you lovely ladies care to dance?" you ask confidently.
They look you over. You're still in your regular clothes. "I don't think so!" said one with a slight snort.
"What are you, like the janitor?" asked another.
"Really, how did you get in here. Did you like climb in through the bathroom window?" asked the third.