My favorite in in Godfather II when Frank Pentangeli is complaining that no one in the band knows how to play the Tarantella. After his complaining (maybe because the old man had too much wine), the band breaks out into Pop Goes the Weasel, which leads to Pentangeli's humorous frustration. 
Bart, Is it wrong to steal a loaf of bread to feed your starving family? No. Well suppose you got a large starving family, is it wrong to steal a truckload of bread to feed them? Uh-uh. And what if your family don't like bread, they like cigarettes? I guess thats ok. Now what if instead of giving them away, you sold them at a price that was practically giving them away. Would that be a crime Bart?
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