Oh, I know what you mean. It's uncomfortable because it's a rare time a slaying is personal, but it never bothered me too much because Sandy (I think that was her name) didn't go into that alley to give Buffy a backrub. She and a group of others cornered her en masse with the intent to kill her, were given the chance to walk away and didn't. She didn't run away because she was harmless; she ran away because they lost. So yeah, doesn't bother me much.