(I am a cashier in a local state-wide grocery store. We have a red logo. A customer comes through my line, and checks through without incident until she hands me her coupons.)

Me: “Ma’am, these coupons are from [other national retailer with a red logo].”

Customer: “But you both have a red logo! Can’t you take those?”

Me: “No, ma’am. I’m not allowed to take coupons from other chains.”

Customer: “But they’re both red! Why can’t you take them?!”

Me: “They aren’t coupons from our store—”

Customer: “IT’S RED!”