I blame my sister. There was an episode of “Lost in Space” where an alien with a blank, faceted face threatened Will Robinson. The alien moved with a strange rocking walk, much like an older woman who needs a knee replacement. My sister rocked into the bedroom night after night to my shrieks. “Danger, Will Robinson!”
365/radical elements 
I still say, “danger, Will Robinson!” sometimes, and wave my arms about. Though without the trauma.
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So do I!
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