At last! Today these signs mysteriously popped up beneath the elevator buttons in my building. What I like most about the message is the duplicitous inference that can be made by the wording. Does "For your health..." imply that the exercise will serve you well physically or that if you don't take heed we will kick the living hell out of you for being such a lazy waste of mass.
And truly, the funniest thing about this landmark event is that I've been at the company long enough to know that an entire think-tank and approval process was put in place to craft and post these few words.