An animal’s memory is not in words, they’ve got to be in pictures – it’s very detailed so let’s say the animal gets afraid of something. Like, for example you beat the dog up and they're looking at you and your Nike shoes or any sneaker or anything like a Nike, he's likely to be afraid of that - so anything without that Nike wingtip, he's likely to be fine. If you think about it, that's a different picture, than a Nike type shoe. Its specific because its sensory based.
Temple Grandin