The day we buried my father, I learned that he had been watching over me from a parking lot for three long years. And I never noticed.

I was standing in the cold November wind outside Trinity Lutheran Church, clutching the memorial program with his photograph on it, when a hand touched my elbow.

‘Mrs. Thornton? I need to tell you something.’

It was Lou, the day-shift security guard from Cedar Ridge Office Park where I work as a senior accountant. I’d seen him hundreds of times, nodded at him politely, but never really known him.

He wore his gray uniform, cap in hand, his face lined with sympathy.