Here's the scenario: I screwed something and that caused some real harm. Now another person could just tell me, “Dude, you screwed X and this caused this and this harm," but instead he will try to be supe- diplomatic and vague to “not hurt my feelings.”
I’d like to tell him, “Dude, stop that diplomacy and prettification — I can take the ugly truth, whatever it is.”
Is there a widely recognized idiom for conveying that message?