どんなに相手が良い人で信頼のおける人だったとしても発言は慎重に。
どこまで話伝えるか、線引きをきちんとしておくことが大事。

Be cautious
No matter how nice and trustworthy the other person is, be careful what you say. It is important to draw a clear line as to how far you are willing to go in your communication.