"You having a bad day?"

I used to hear this a lot at my grocery job and I heard it in one of the calls I took today. Usually, it's said in response to a snappish tone in my voice that may have been instigated by the ludicrous demands placed upon me by the dumbfuck customer.

'Well, you must be having a bad day because I just know that I, God's perfect little snowflake, couldn't possibly bring misery into another person's life, consciously or otherwise.'

People can be the fucking worst, sometimes. Thank God Monday's my last day.