13 signs your coworkers think you're dumb

Paramount Pictures In the 2004 cult hit "Mean Girls," Plastics member Karen Smith is frequently demeaned for her lack of intelligence. It's funny in the film, but nobody wants to be treated this way in real life — especially at work. In most instances, if you feel like you've been assigned the role of the resident office fool, there's probably a simple explanation. You're behaving in a way that makes people think you're stupid. Your coworkers are jerks. Both of the above. Before you can begin ...