That feeling when less than a day is all it takes for someone to set a dog's leash training back at least four or five days. Thing was getting better, trying to pull itself away from the holder less, starting to figure out keeping pace a bit, picking up on minor verbal and physical/gesture cues, all the various rot that starts coming in as they get used to the desired behavior patterns. And now it's pretty much all gone, because someone else apparently doesn't give a single shit about having a dog that's not going to get itself killed.
Hell, I can't even really blame them, cause they're old, the animal was sprung on us without warning, and the ruddy thing's approaching about as poor a match for old people as possible,* but good gods I had forgotten how rapidly and obviously someone breaking consistency during the initial learning period fucks said period up, particularly when the animal itself is not in terribly good shape and seems to have a previous history of unaddressed bad behavior.
*Unfixed male, almost utterly untrained (the closest it comes is a shoddy job of house breaking and that's it.), high strung/fairly energetic breed that gives every indication of coming from a pretty bad environment, itself dumped on us with zero previous exposure, the list just goes on. This is something that should be in the house of someone learning how to handle rescue dogs or some shit, not two geriatrics and someone in as poor a situation health wise as me. No one here has the energy or consistency needed for this thing.