It's all about mindset. If he doesn't want to act like a human then don't treat him like one. He's more akin to an untrained and unfixed dog, more often than not. So you have to distribute punishment and reward accordingly.

[Though... It wasn't that way before he died. There was something different about him when he racked up so much Discord. As if something his typical brash and bombastic attitude was desperately trying to hide came through.

A shame, really. His more subdued nature was preferable.]