Respond!

Hi,

"If you hear people gossiping or speaking disgustingly or mocking Torah and mitzvot, and you know that they are stubborn and won't listen and so you just put your hand over your mouth, you will be punished for not responding to their foolishness."

(Rabbeinu Yonah, Shaarei Teshuvah 3:197)

Have a great day,
Mordechai