In the past several months in my store we have had:

1. Customer accusing cashier of hitting her husband (Video shows incident did not happen)

2, Customers trying to get unauthorized discounts-claiming it is an ecoupon

3. Several instances of customers leaning over the counter and snatching receipt from cashier

4. Black customer last night yelling so loud about why we "don't have any cashiers" (I was leaving at the end of my shift and other cashier was on break)

5. Customers getting caught stealing at self-checkout (of course the clerk asks if they "forgot to scan the item"-suurreeeeeee