A lot of people saying its fiction on this thread and maybe it is but it happened to me and I was the little child. Years ago in the Houston bus station where my father was manager and there was an old drunk. I was embarrassed at the time but have since realized that he was in fact an angel and I love my father more when I remember how he treated that old man with respect enough to introduce me to him.
That’s a beautiful story. Your father must have been a loving man. This verse comes to mind: Hebrews 13:2 Do not forget to entertain strangers, for by so doing some people have entertained angels without knowing it.