I decided its time to start getting my almost 5 month old, Leo used to being brushed. I researched for the right brush and went and bought one. I brushed Zoey, my 5.5 yr old yorkie in front of Leo, thinking maybe he'd be interested instead of afraid. I had a bunch of treats on me, too. I let Leo sniff the brush then I praised him and gave him a treat. I touched him lightly with it, and praised him. I brushed him once and he seemed okay so I praised him. I kept doing this, but once I got to his legs he started making noises like someone was killing him. Then he started growling, and he but my hand really hard a few times and I have some lovely teeth marks and a bloody bite on my hand. I tried to sooth him by rubbing his neck..I kept praising him as I touched him with the brush, but he started to freak out more. He had/has some tangles in his chest and legs. I tried to get them out bit no matter how gentle and how much I gave him treats he freaked out and bit me. Bad first experience..Zoey never acted like that.