Very classy move by these guys. I was having a bad day and actually forgot some of my purchases. I went back in somewhat sheepishly, and apologized for being flaky and mentioned I was having a rough week.
As I was heading back out to my car one of the clerks I had previously been talking to came running after me with a bouquet of flowers. He apologized for the inconvenience of me having to come back in, and hoped the flowers would help.
As I said, classy.