Why does Michael hate Toby so much

He's essentially a corporate employee that's permanently based at the scranton branch.Why does michael hate toby so much on the office?He's definitely not (at least from michael's point of view) an employee of the scranton branch, so michael sort of views him as a combination of invader, traitor and spy.It's a reflex, outside his control.Michael hated toby because he worked in human resources.He wasn't always the most pleasant person of all time, however, and decided that he absolutely hated the scranton hr guy toby flenderson for no real reason.

An automatic spasm of such animosity and disgust.I was watching the episode where michael is angry that toby returned from costa rica and i was wondering why they have such a bad relationship.To michael, he sees toby as his father and believes that he's not taking good care of his daughter identical to his father who didn't maintain him after divorcing his mom.