Dollar General review: rude behaviour

The clerk was talking on her cell phone while ringing up the purchases of the customer in front of me. Then she continued to talk on the phone when ringing up my purchases. Also, she did not tell me how much my purchases cost. When I told her I had to guess she became angry, slapped the receipt onto the counter and pointed at it.
She also wiped her nose with one of her hands before using that hand to put my purchases in the bags.