Signs that clearly work

I have a week's worth of pics and events that I keep forgetting to post! So let's start with this one - which I captured last week.

I snapped it and immediately sent it to my Mom. When we used to work together, long long ago, we'd shake our heads at the signs we'd see posted in the bathrooms.

I have since always chuckled when I see them - clearly (not) working, but presumably posted by some exasperated coworker. :)