Signing off as "Salty" instead of "Sally." Including 18 line items in your signature block, including your parents' home number. Forgetting that you already pushed "send" on your daily e-mail to your mom, and closing the subsequent e-mail to your boss with, "Love, Sean XOXO." Realizing that upon sending said e-mail to your boss, you accidentally hit "reply all" and thus also sent your hugs and kisses to your entire team. The ways we can bungle a professional e-mail are endless and there is arguably no worse way than how we sign off.
Get ready. Soon, the normal sea of faces that pass you by on your morning commute to the office will look a little less human, and a lot more cyborg.