yes! I'm glad I'm not the only one, at least once a week a complete stranger will say "smile, it's not that bad", "you know it's not against the law to smile", or "what's wrong?!". It always happens when I least expect it to (buying something at the mall, eating a meal, talking to a customer at work) and it just makes me sad because I think I'm having a good time going about my business while the rest of the world is thinking "why is that girl so angry?!".