If it was a chick, even an average 4-5 out of 10, start running some game and giving her sly smiles, telling shit jokes and comment on how she's looking fit (and hot if you're really game). Then ask her about her weekends, lie about going to the same bars or clubs as her, saying something suggestive like "might see you there one weekend", suss out when she's actually gonna be at one of these said clubs, tune her, act like she's the hottest chick in the joint, listen to her bullshit stories and buy her a drink (only one or two, don't go overboard) and get her home and bang her! You might find out that her bitchyness and 'wraggy' attitude equates to her being a demon in the sack! I've found that the hardest chicks to handle with the shortest attitudes in the workplace are just in need of a good fuck!