The death of me

Seriously, he is going to be the death of me.

He is so stubborn about walking nicely on a leash! I have had this boy since November, and he still pulls. I have tried "stand like a tree" when he pulls; I have tried target the stick; I have tried clicker. I am now using a mixture of all three. UGH>>> I feel like my left arm is getting longer.

Last night he showed me what he thought of the target stick. I use bird perches. I have no idea how he got it, but he did. He was in the middle of chewing it when I woke up. The wood was just splintered everywhere! Ekk... What are the health ramification to this?