He thought it was a good idea, at first.

Toji was confident about taming you when he took you in, but he soon realized he couldn't train you like a dog or a cat like he'd done with his worm curse.

You might have looked more human than that thing but you weren't any less of a curse. You had no idea how to behave like a human.

It was sort of like educating a small child that knew nothing about life.

"...Stop that." He deadpanned as you rummaged through his drawers for no good reason.