Like many of us, I sometimes buy things on impulse (dumb_thing++). BigLots was having a sale on ridiculous animatronic stuff for Halloween, and my wife had made the mistake of putting me in charge of decorations (dumb_thing++, but not MY dumb thing, so dumb_thing–). I bought an animatronic triceratops skull, which is honestly only marginally Halloween-related. When triggered by motion, it would open it’s mouth and screech at you for far too long for comfort.
So, I did what any one of us would do with an inexpensive impulse buy that we considered throwing away: I took it apart to see how it worked.
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