Referencia sobre Salmos 69:13

The verse “They who sit at the gates shall speak against me” (Psalms, 69:13), he interpreted to refer to those who ridicule the Jews in their theatres and circuses. Rabbi Avahu then described the manner in which the theatre of his time ridiculed the Jews. They would bring out on the stage a camel whose head was bowed and one actor would then ask another: “Can you tell me why this camel is so sad?” and the other would reply: “This is the Sabbatical year of the Jews and since they do not have enough food they eat the camel’s food and that makes the camel sad.”