First up: I wish I knew the story behind this one but I don’t. I saw it on the side of someone’s van in a parking lot at an art show. It reminds me of that old ‘70’s song by Five Man Electrical Band:
Signs, signs, everywhere a sign
Blockin' out the scenery, breakin' my mind
Do this, don't do that. Can't you read the signs?
And I love this one below which is from the door of the church of San Moise in Venice.