Shutterstock Everyone has bad workplace habits Whether you realize it or not, they could be driving your coworkers nuts. You're best avoiding certain habits at work, like eating smelly food at your desk or talking politics. Americans with full-time jobs spend about a third of their weekdays at work. So it's understandable that in all that time you spend around your coworkers and bosses, you're bound to let a bad habit or two slip. Many of these office faux pas, however, may be avoided — you just need to know what it is that drives everyone around you nuts. For the sake of your office compatriots, take a moment to remind yourself what behavior at work may be negatively affecting others.Showing up late to work Getty "Punctuality is critical," says Rosalinda Oropeza Randall, an etiquette and civility expert and author of "Don't Burp in the Boardroom." "The professional thing to do is to arrive on time, ready to do what is expected.