The sign on the entrance to the main sanctuary of a synagogue in the USA where I spoke several months ago really made me laugh.
Some people mean well, but they flub it when they try to get their message across. The directors of the synagogue probably wanted to convey to the congregants that it's not respectful to walk in the door in the middle of the rabbi's sermon. Maybe they also wanted to convey that barging-in in the middle is disruptive and distracting, both to the rabbi and to those already seated.
On the other hand, you can interpret the sign comically, as Breslev Israel's General Director Yosef Nechama (who took this priceless photo) and I did: "Hey, Pal - it's dangerous to hear the rabbi talk! Don't come inside!!"
I'm happy to have the laugh on me; at any rate, my weekly shiur (lecture/lesson) in English that's open to the public (both women and men are welcome) resumes today, Wednesday 27 April, at 6 PM local time at the Chut Shel Chesed Yeshiva in Jerusalem, 56 Shivtei Yisrael Street.
You can see today's lesson live right here at 10:00 AM PDT, 12 Noon Mexico and CDT, 11:00 AM EDT, 4:00 PM in the UK, and of course 6:00 PM Israel time. As soon as we can, G-d willing, we'll post a link to the lesson for all those who couldn't see it live. Best wishes for a healthy Spring and Summer.