Why not to use shock or pain in dog training

I have seen a few social media posts recently where people are telling dog owners that in order to help their dog overcome their separation anxiety they should be withholding affection and attention when at home, and should totally ignore the dog for a certain period...

Although people refer to working through separation anxiety as "separation anxiety training", it absolutely does not fall into the remit of "training". When a dog displays anxiety about being home alone, that dog is having an emotional response to being alone - it is...