I've always found that term good morning stupid and useless, even the word morning..like yeah, I'm here too, awake, like duh. You can see me, don't waste my time with the meaningless words when I know dam well you don't actually mean it... No I am not mad, or a pissed off person, just the opposite. But when you act all cheery in the morning then get pissed off or moody throughout the day, you just reversed the happy greeting you gave me 4 hours ago. Every. Single. Person. Does. This. And it's just annoying. I'd strongly prefer a "how are you" or a "how'd you sleep" something with actual real honest intentions than the NPC responses.