A bit of wound advice.
The brain surgeon Harvey Cushing in the 1920s and 1930s discovered that, to stop bleeding cold water would stop it but then it starts bleeding soon after by reflex, for same reason your ears go red and painful when you come in from the cold. Warm water, about 41 degrees however also stops bleeding but does not have the vasodilation reflex afterwards that causes re-bleeding. Dipping bleeding tail in a mug of warm water in other words will help stop bleeding unless it's a big vein bleeding - veins won't contract.
Once bleeding stops, dab dry, push the wound edges together and apply superglue over the wound covering half a cm on each side (NB not in between skin edges - interposing glue stops skin edges growing together again). The formulation of superglue used in clinics and the stuff you get in the $2 shop is very similar.
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