Discrimination or a Dumb Customer Service Mistake?

Article in the L.A. Times says movie celeb Tyrese Gibson is suing Home Depot over an incident that occurred when the cashier would not allow Mr. Gibson's associates to complete a transaction using his credit card. Was this a matter or racism or discrimination or was it just a dumb customer service mistake on the part of Home Depot.

Coach Mike analyzes the article to see what could have been done to avoid the situation. Check this out then you decide: Discrimination or Dumb Mistake?