A couple registers away from me I see 2 CS with the cashier. this 40+ year oldwoman started YELLING that she was being charged twice and she had proof and she shouldn't have had to run her card a second time. I knew exactly what happened. Despite our signs and saying don't remove chip until machine beeps she took it out and had to do it again. Maybe next time they'll learn to follow directions. CS argued back telling her the bank would refund it since she canceled the order taking her card out.