What if Du heard a "meow" under your bett and Du went under and Du saw Alphonse Elric with cat eyes on his face?

I would get up pull him out from under my bett and say WTF bro why Du in my room and under my bett GTFO but first teach me alchemy

I would keep him and look after him until ed comes and picks him up

Kill him and say, "Go away."