Don't quotation marks imply a euphemism? This sign seems to indicate that employees need only "wash hands" if they're feeling like it, wink wink. Or "wash hands" may be code for something else at this establishment. Oh, the intrigue.

Here's the thing: When you're towing a large truck at night, maybe turn off its headlights. It was quite disconcerting to see this--I thought I was suddenly driving into oncoming traffic.