The man left a letter in the mail box and disappeared. The letter started with, “Adam” And continued, “Remember last week when you were selling Kool-Aid on a hot day? I didn’t have any money but you offered me Kool-Aid anyways. Thanks, man! I was really thirsty. Good things happen to good people like you. Stay cool, dude. Mailman.” Krista was overwhelmed by this man’s effort to return the favor that Adam had done to him.