
"I would never say anything behind their/your back, that I wouldn't say to their/your face." -Random Person Trying To Sound Noble.
Is that really such a virtue? Sometimes things need to be said, venting needs to occur, and you don't need to say that to a person's face. Talking behind someone's back is a good thing, it's a courtesy. But like anything else, do it in moderation. And be careful to not start sucking as a person.
It's like my friend Mike says, "Sometimes I'll say all kinds of shit about people, shit that would be cruel if I said it to their face, and then I sort of work my way backwards from there. 'Well, it's not exactly like that, and I was sort of being a dick too.' But, sometimes I need to start off dropping bombs, and I better not do it on their face."
Cheerio!