Thanks to Lisa and Bart, Krusty the Klown is re-united with his father, Rabbi Hyman Krustofski (Jackie Mason).
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The Simpsons Season 3 Episode 6 Quotes

Bart: Poor Krusty.
Lisa: A man who envies our family is a man who needs help.

A rabbi would never exaggerate. A rabbi composes. He creates thoughts. He tells stories that may never have happened. But he does not exaggerate.

Rabbi Krustofsky