Nope. That's not the answer. I've skinned bobtail coons that dint' have a mark on them. And I won't believe that the only injury they received in a battle was a bite on the tail. I've caught a couple that still had their tail, but is was dried up, atrophied so to speak, and ready to fall off soon. It's as fi they have lost blood flow to the last half of their tail.
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Endeavor to persevere.