There is so much I want to say here but I like not being

So:
aggression breeds aggression
praise not punishment
training take more than 5days
where did this puppy come from?
are you using a harness on a short leash for your yorkie? IF NOT GET ONE
please it aids significantly!
why else would a yorkie even need to heel?
Do you even know why you teach a dog to heel and what type needs it? I'm guessing no?
maybe he's scared of the brush-my dog literally ran from it and lost bladder and bowl control at the site of one...maybe he was whacked with one like you do with the magazine
Next you'll be posting about how puppy is shredding all magazines in the house...
sit stay come kennel in 5 days wow brilliant dog reward that!