That doesn't matter, in most jurisdictions stealing trash is still stealing. If I'm disposing chemical waste in your backyard, do you automatically become the owner?

How can you steal trash?? You're literally trying to get rid of it?! I am pretty sure you're never going to jail for taking someone else's trash (maybe you can get in trouble for trespassing or something like that, but for stealing?!?).

I think you'd be so hard-pressed in finding a court that would convict someone of "stealing" for having been in the path of trash that was jettisoned through two stories of your home as for the prospect to be infinitesimal