Day of Anger-Lee Van Cleef, Giuliano Gemma-1967 IMDb 7/10

Amiable, unassertive Scott Mary picks up the trash, cleans the toilets, sweeps the floors in the town of Clifton. Then a gunfighter comes to town. He offers advice and guidance to Scott who quickly begins to toughen and mature, thus upsetting the balance of power in the town.