My in-laws live in Kentucky and for reasons I will spare the details of, you get really into the habit of shaking out your footwear (and gloves, etc) every time you put it on. Every single time. The good news is that it actually works. They can't hold on to even a moderate shake against gravity.
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https://youtu.be/0Sz1j2Z7GQc?si=TPiB4Yqo7xU-mnpZ
WHO NEEDS SHOES, ANYWAY? NOPE! NO SHOES! SHOELESS!