I see this silly sign way too often....
Well, I suppose I should admit that I rarely see it anymore; but I do pass by it regularly.
In deference, I try to remember not to wear a fixed blade when I go there; but I don't worry too much about whatever traditional I have in my pocket.
In today's case, I left the G3 in my vehicle.
(I must admit that I keep expecting to find metal detectors at the entrance, and get annoyed at the prospect of having to go unload before going in. It wouldn't be the worst thing in the world - we've all had to be without knives from time to time...but I still don't care for the idea.)