You mean like if a black teenager on drugs is pounding the head of a white guy on the pavement and telling him that he's going to kill him, there are multiple shades of grey that are not even apparent to the accuser, and therefore no self-defense should be used because the only way to be sure that murder was actually taking place is by... being killed?
Unless, of course, it's a woman, in which case the way you felt as you drove by on the freeway when you looked at a "male" justifies you calling in a SWAT team to fire a missile at him from a drone and enable you to feel "safe"?
Those kind of grey areas, b@tch?
Snicker snicker