As a child Tyson had a Grumpy Bear stuffed toy.

Essentially, that's all there is to this particular head canon.

Tyson never watched the Care Bears cartoon growing up, and still hasn't, but Jethro won the toy at a school raffle when Tyson was six and gave it to his little brother.

This toy was treasured until Tyson's father forced him to give it away - along with other toys - when he was twelve.

Tyson likes seeing other people messy.

With Tyson's OCD, and general dislike of ripped clothes on other people, this seems rather odd.

He can't explain why, and paint/glitter/dust/et cetera on his own skin would drive Tyson up the wall, but he adores seeing other people that way. He thinks it makes other people look incredibly pretty.