“The first guideline: anupavādo. Don’t go finding fault with one another. In other words, don’t say evil things about one another, don’t misrepresent one another, don’t say anything that will cause people to fall apart from one another. Don’t start false reports about one another, and don’t encourage them. Don’t curse or yell at one another. Instead of finding fault with one another, each of us should look at his or her own faults. This is what’s meant by anupavādo. You can use this principle anywhere, whether you’re ordained or not.”
~ Ajaan Lee Dhammadharo “Dhamma for Everyone”, transl. Thanissaro