Don't just accept it and walk away.
Pay it forward.
Anecdote:
My wife and I were dining at our favorite restaurant one day and being regular patrons we got to know the wait staff. Our waitress was conversing with us about the upcoming school year and how tough it was to get school clothes for her six kids. Waitresses don't get paid a lot of money in America and they must depend on tips to round out their meager wages. We left a Benjamin ($100.00) and departed. She came running out the door before we got out of the parking lot and we just smiled and waved goodbye.
Helping others is like tossing a stone into a pond. There's a ripple effect.