No I am not surprised, amazing how we ever grew up without all these signs to keep us safe.
Best ones I ever saw was on a hospital gate in France " Warning Guard Dogs operate here" Closely followed by this gem in Austria written in bad English on a cafe window "why not try one of our delicious tarts, please ask for a waitress"
OH has a favourite one from a newspaper, the headline read "Queen sees Fonteyn take 10 curtains"