Keep Smilin'!

One of my biggest pet peeves is when people write 'Keep Smilin'!' or 'Chin up!' or 'IT is what you make of it!' bullshit when I tell them less then ideal news in an email. How is that helpful? Why do I need to 'keep smilin'? Why can't I be pissed, annoyed, sad, grumpy, tired and worried? Give me money, and I will smile.