I was manager of a liquor store and had a young black male customer tell one of my cashiers to "STFU B*TCH and take my Mfluff'n money!" when she asked for his ID. Now while I did'nt care for the girl to begin with (lazy, late for work, noshows, ect), there was no way I was going to let him talk that way to one of my employees. I made sure he had not paid for his Hennessey, yanked it out of his hands and told him to get out and get out now.
I had a good 40 lbs and 3-4 inches on the guy and can be intimidating when I want to be, but I was also pretty sure he had a gun in his car. Luckily he did'nt come back in the store to settle the score because all I had for a weapon was a 5 cell maglight.