Just as it is often hard to tell a toadstool from an edible mushroom, so too it is often very hard to recognise the Jew as a swindler and criminal.
A mother and her young boy are gathering mushrooms in the German forest. The boy finds some poisonous ones. The mother explains that there are good mushrooms and poisonous ones, and, as they go home, says: Look, Franz, human beings in this world are like the mushrooms in the forest. There are good mushrooms and there are good people. There are poisonous, bad mushrooms and there are bad people. And we have to be on our guard against bad people just as we have against poisonous mushrooms. Do you understand that?
Yes, mother, Franz replies. I understand that in dealing with bad people trouble may arise, just as when one eats a poisonous mushroom. One may even die! And do you know, too, who these bad men are, these poisonous mushrooms of mankind? the mother continued.