Step 1: Argue with girl, Step 2: Buy girl cute but realistic snake costume... You see

That’s what happens when you play with fire

Bull!
The foot was outside the safety of the blanket, the ‘under the bed monster’ did it and framed the husband.

I am absolutely calling bullshit. Can't find one credible source for this story, it changes greatly depending which source you look at (sometimes he wakes up and sees her foot outside the covers, another he comes home and it's both feet, and he proceeds to beat her with a baseball bat until she starts screaming).
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Not to mention the right picture is literally just taken from the store's webpage.
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https://www.inspireuplift.com/products/snake-printed-leggings?variant=12824412586083&cmp_id=1593463811&adg_id=59946538053&kwd=&device=m&gclid=EAIaIQobChMIn8GPzbr63wIVgx-tBh3O9gZcEAQYASABEgI-a_D_BwE

So that's what he told the cops

Even if this is really, I seriously would not blame him.