It's important to stay humble. And clearly the only way to do this is to hire a man who can do headstands to constantly remind you of your inadequacies.

Troubleshooting fixes all problems.

From the Reddit submitter:

I set up continental breakfast in a hotel where guests constantly set croissants on fire in the toaster... My boss put this up in our kitchen after I suggested we have a class on how to use a toaster (I'm Brendan).