The first time I noticed a warning sign was at the entrance to my hotel where I quickly surmised that it was rather pointless. As a customer, I received the knowledge far too late to make any practical use of it. What was I going to do? Decide at the last minute to cancel my reservations and go look for another hotel? If I were an employee it would be equally worthless. I got bills to pay, I got mouths to feed, ain't nothing in this life for free, so it's not like I can just quit my job. But after a few days, these signs became invisble to me. I've got to think they're invisible to most Californians and don't really help you make any kind of informed decision. Gah! California is a great state, but that kind of thing would drive me up a wall.