I barely know the man. I'll leave the head hitting to Simmons and Skye. Though he should probably be grateful there isn't a Helicarrier here that they can use to hit him over the head with like Nat did to me to get Loki out of my head.
I will be. And from near as I can tell, mostly from watching the show and inferring what Ward has said, Garrett kept Ward from going to jail and forced him to make something with his life. Which can inspire that blind loyalty.