Below the Border1942

Marshal Buck Roberts posing as John Robbins:
[posing as an outlaw and intervening as Sandy, who is playing his part as a janitor, is being mistreated] What are you getting so riled up about? It was just an accident.

Henchman:
Accident - nuthin'! He ought to know how to handle a mop by now.

Marshal Buck Roberts posing as John Robbins:
Well, some people are born to handle mops; some are not, as you seem to know so much about.

Marshal Buck Roberts posing as John Robbins:
[authoritatively] Just pick up that mop and show him how.