I had a moment during the Escape Room I did recently when things were falling apart. Our team had less than 30 minutes left, and we were completely stuck on a particular puzzle. It wasn't because we didn't know how to solve it - it was because we couldn't figure out how to work a directional lock. 

After spending literally 10 minutes on it, I decided something needed to change. I took off my jacket to signify that things were about to get serious. And I solved it right away.

Programmers have "headphones mode" - which is similar. It means "don't interrupt me - I'm working."

Headphones mode is more of a default state, though. It would be better to have something that one could physically do to change things. A "rolling up your sleeves" moment.