Taken from Quakers Are Funny! by Chuck Fager, Kimo Press, 1987:

One World War II Quaker conscientious objector had been a
professional wrestler. Once when he and some other inmates of the
Coshocton CPS camp in Ohio made a trip into town, they were hassled
about their pacifism by some local youths, who insisted that only
force could change the Germans views.

In response, the ex-wrestler took off his coat, challenged one of
the local boys to a match, and promptly threw the townie across the
room. He then asked the youth, Now do you believe that force wont
change peoples views?

Heck no! the local boy hollered back.

Thats exactly my point, said the Quaker, who put on his coat and left.