A biker slapped an 81-year-old veteran in a diner — no one could have imagined what would happen in the minutes that followed… 

The atmosphere in the diner was thick with the smell of greasy fries and over-brewed coffee. The customers were scattered: a truck driver slowly sipped his coffee, a family enjoyed their burgers.

In a corner, an old man sat, his fragile figure, a worn-out jacket — a Vietnam War veteran. He was drinking his black coffee, hands firmly placed on the table. Continues…