This article is from the of the muppets FAQ, by Craig Silverstein with numerous contributions by others.
At one point during _Muppet Christmas Carol_ it looks like Beaker flips off Scrooge. Does he? Close examination of the video reveals that (a) Beaker uses his index finger (the second of his four fingers), and (b) the back of Beaker's hand isn't toward Scrooge. While the gesture is angry, it isn't obscene.
 
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