In this case, as I have gotten some good input, I have a better idea of what is the accepted norm and what isn't tolerable, being just plain silly.
OK. Here is a quick test you could do. Make your self a Chrysantemum seal the size of your palm, and paint it golden.
Then, in the middle of practise, pull it out and shout: "Oi! Kono mondokoro me ni hairanuka!"
If they all drop to their knees, you know it is time to go.