05/10/2026
HUMAN DIRECTED AGGRESSION AND THE USE OF AVERSIVES
I’ve had several dogs come to me in the last year who have aggression issues around people that either started or became much worse after they’d had aversive training. By aversives we mean the use of slip lead corrections, body jabs, rattle cans, prong and Ecollars etc. Some dogs went for general loose lead/recall/obedience training but became so scared after the use of aversives that they are now lunging at or even biting people who approach them or try to handle them. Some were already worried about people (growling or barking etc) and are now lunging or attempting to bite people. Some have bitten their owners since this training.
These dogs didn’t have these issues beforehand and they’ve become so scared of what people may do to them now that they are showing aggression. Some of them are now misinterpreting normal human interactions with them and see people as a threat to their safety and are using aggression to try and keep people away. By normal human interactions I mean people taking collars and leads off, reaching out to touch them, walking past then when they are resting etc. These dogs are traumatised by what’s happened to them, there is no other way of describing it.
I used to see dogs like this (who’ve shown aggression after aversive training) once or twice a year and now it’s something I see several times a month and it’s really concerning. There are some really unskilled trainers out there using aversives which is extremely worrying; if an unskilled trainer gets it wrong using reward the worse that happens is the dog gets fat, if you are an unskilled trainer using a shock collar there’s a huge risk of fallout.
Aversives are sold as a ‘quick fix’ they make dogs stop behaviours that people don’t like (running off/barking/stealing things) but there is always a huge risk of a fall out. It’s no surprise really that doing or using something that causes fear or pain may make an anxious dog worse.
None of this is the owners fault either, all have incredibly kind and loving families who weren’t aware these methods would be used or who didn’t realise the implications. They’ve done nothing wrong and are now left to try and repair the damage that’s been done. I feel so sad for the lovely families and their dogs as they’ve been really let down.
There’s no quick fixes to changing emotions, it takes time and patience and who often we are trying to rebuild confidence that’s been lost and help dogs recover from previous trauma (of all sorts). There’s a huge risk with quick fixes and it’s like playing roulette- you may have an incredibly robust dog and get ‘lucky’ and have no negative consequences from using aversives but it may break another dog and leave you with a terrible fall out. Just not worth the risk when we have alternatives
Laura McAuliffe, 2025, Dog Communication
