Concepts, sayings, and objects that make little or no sense.

There are common concepts, sayings and objects that we take for granted that actually make little or no sense.
For example:
"A watched pot never boils."
Of course they don't. But the water does... eventually.
"Vacuum cleaners are a housekeepers best friend."
No they're not. First of all, houses are not vacuums, and secondly, vacuums are not dirty.
Others?
"Don't give in to the lies. Don't give in to the fear. Hold on to the truth. And to hope."
-Jim Acosta
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Comments
An old southern guy used to love to use this analogy. I've never understood it...
It must be one of those kinky a... I'd better stop right there.