#12: Not So Sneaky
Most of us don’t want to be that coworker that no one likes. Most of us are not out to be untrustworthy and wreak havoc on the company and on our coworkers. So please don’t take what I’m about to say as an encouragement to be shifty. I’m just saying that if you are going to be shifty, be smart about it.

For instance, if you are going to attempt to send e-mails to customers while pretending to be your coworker, you probably shouldn’t format that e-mail in such a way that makes it immediately obvious who you are. What’s funny is that if this guy had changed the formatting to look normal, no one would have suspected the truth, because everyone knows that he uses wacky formatting in his emails.