Though Tyson doesn’t really celebrate Halloween, or any other holiday, he does make an allowance for his nephew and he will always make sure to have a stockpile of sugar for the enjoyment of others.
The biggest exception to this is in Teacher!Verse. There Tyson’s number one priority is making sure his students are happy and learning. He point blank refuses to have anything Christmas related in his classroom, so instead for the entirety of October, there is a bowl of sweets by Tyson’s door and on his desk.
You answered a question? Have some sugar. You were passing by the door? Grab something sweet whilst you’re there. Feeling blue? Have some sherbet.