Ever walk into a restaurant and think you're about to have a nice meal out, then get the portions and think "well, that's tonight and two day's meals..."  Then as you're walking out you see a death fat couple eating the same thing you got (plus more of course) and don't regret leaving your leftovers at that place?  Yeah, never going back there again.  Same thing as if a smoker blew his smoke into my face, or a drunk couple were fighting at no one cared.  It's the same thing, I just don't understand the difference.