When it was their fault and not yours?
Well, it's horrifically frustrating isn't it? Especially when you try and explain the situation to said person and they refuse to hear reason, and even when you try and apologize and meet in the middle they'd much rather just keep fuming and swearing at you for little reason.
Orz.... I wanna tell 'em to just get over themselves, but that'd just make it worse- so I'm keeping my mouth shut and just waiting for things to calm down.
But at least in my case, I don't like keeping my mouth shut when I know I'm right and being unjustly treated. So I'm horrifically frustrated and angry right now because that's exactly what I'm doing.