We all have days where we really don’t feel like doing our jobs. Blessedly, most modern computer jobs don’t actually require that much work: just show up, log on to your computer, open an email draft, and you’re good to zonk out for a half hour or so.

Manual labor jobs are a bit different. You often can’t B.S. it, and if you feel like you can, you probably shouldn’t. Faking your way through a day on the job site can end with you or other people injured — or, as shown in this video, a lot of people with broken luggage. Next time, just call out sick.