At a distance, it is, of course, difficult to tease apart mischief and mentalism. And even up close, it’s not clear to me how a teacher, dutifully observing the Sensitivities Of The Current Year, could dismiss as mere prankery some farcical claim. As opposed to some other farcical claim.
Where the classroom affirmation of furries and themness can take you.
Easy way to deal with this: no pronouns will be used. All teachers should declare anything disruptive to instruction is prohibited, in the class rules they send home.
Use a gender and species neutral term, “bloomin’ idiot.”
Bloomin’ idiot can be used in place of he/him she/her and bloomin’ idiots can replace they/them.
You can mix it up a bit by substituting ‘moron’ for ‘idiot’.
Gender and species neutral pronouns are just fine by me.
Go in and slap the Principal and tell them to ‘Wake Up’ numb nuts!