Someone Lurking in the Bushes
In the episode "Cat Out of the Bag" (S1, Ep39) there is a scene where Wally and the Beaver go outside at night to look for Puff Puff, a pet cat that they were supposed to have been taking care of. At the 18:40 mark, a dark figure can clearly be seen lurking in the bushes behind the Beaver and Wally. Kind of creepy because it's dark and the kids are supposed to be out there all by themselves, but evidently, they're not.
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