This question already has an answer here:
Yesterday, I received some news. My mother was quite affected when she heard it, so she shared it by mistake with a few of her friends at the spur of the moment. However, it's supposed to be top secret as it's a touchy subject, and my mom herself forbade me to share it with anyone, after discussing with her friends that they would all keep quiet about it. (Not that she needed to forbid it, it was my secret in the first place...)
However, she (my mom) is a chatterbox, so she kinda said it to our lawn-keeper (whom she talks to all day when I'm at school.) It went like this:
Mom: Don't tell anyone, but [insert secret talk here].
Lawn-keeper: No ma'am, absolutely not! Your secret is safe with me. (Smiles sinisterly...)
(That is an exaggeration, but it went along similar lines)
The lawn-keeper is pretty trustable, but I don't know if he's a chatterbox too.
My question is: How to prevent a secret from spreading via this "don't tell anyone, but... " phenomenon?
(Please don't ask further about the secret, I can't reveal anything else about it unless absolutely necessary for answering the question.)