Tattletale! I'll make you pay for snitching on me!

大嘴巴！你把我的秘密说出去了，我要你付出代价！

Knowing all the details helps frame the situation, allows for the best decision-making to occur and makes you look like a mature and informed colleague rather than an opportunistic tattletale.

知道所有细节有助于了解总体情况，可以做出最好的决策，也能使你看起来像个成熟和明智的员工，而不是投机取巧、搬弄是非的人。