Well I am just going to get on my soapbox for a minute...... People these days are so rude, and I hate to say it but the women are worse than the men. 
I ask everybody that comes into my shop "How are you?" or I say "G'day" or "How are you doing?", 95% of the men will say "g'day" back or some friendly reply, I reckon only 70% of women respond with a friendly comment. "How are you today?" Does not get "pump 9" as an answer, saying thank you when I give your change to you is NOT HARD....... 
Sorry FB friends, rant over.
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