Lately I’ve been spotting too many inelegantly-knotted tethers on the end of boisterous dogs. Bad knots either come loose too easily (defeating their purpose) or are too fiddly to untie in an emergency (and everything is a potential emergency through these vet-eyes…soz).
So! If you ever find yourself in a position where you:
Are fit to deem it useful, beneficial, kind and safe, to tether a creature* or non-creature;
Happen to have some good lead or rope on hand, already comfortably and securely attached to the creature;
Need a trusty knot that can also get you out of strife in a jiffy, then…
You want something that is reliably strong, and reliably reversible.
And the Quick Release Knot is your friend.