…they gave me a military discount. I never asked for it…

Called them yesterday because my AC went out.  They offered a same day appointment.  The service was great, the employee was very friendly and personable.  The price was fair.  But the kicker, when I looked at the receipt closer several hours later, I noticed that they gave me a military discount.  I never asked for it, didn’t even know they offered it.  The service man must have noticed my Marine Corps flag and took it upon himself to give the discount.