An Emotional story: Real relationship between a Father and his Son!

For an evening dinner, a son took his elderly father to a restaurant. Father, who is elderly and frail, spilled food over his shirt and trousers while eating. Others in the restaurant looked at him with disdain, but his son remained unfazed.
After he finished eating, his son silently led him to the washroom, where he washed the food particles off his face, erased the stains, combed his hair, and firmly fitted his spectacles. When they emerged, the entire restaurant was stunned into silence, unable to comprehend how someone could openly disgrace themselves in that manner.
After paying the bill, the son and his father began walking away.

At that point, one of the diners approached the son and inquired, "Don't you think you've left something behind?"
"No sir, I haven't," the son said.
The old man retorted, “Yes, you have! You left a lesson for every son and hope for every father“.