Ok, but here's a counterargument: you and your clothes are both foreign matter, right? Like, you don't come from this world, while any clothes you made here would. But why wouldn't it send your clothes home at the same time it sent you, whether they were on you or not?

[His eyes widen and he grabs his head, waving a hand excitedly.]

Or maybe it wouldn't send them back at the same time whether they were on you or not! Maybe since they're different things, they're not even connected! We need to run experiments or something! We gotta solve this!