If somebody puts a file into your 3D printer without your permission, then society says you have to properly continue the print for 9 months, paying for electric & materials yourself, straight to jail if you interfere or alter quality of print, then its your property afterwards and shame on you for leaving it in a donation bin.

Of course the asshole gets to say "just a prank bro", the cops ask why you weren't home when your house was broken into, society says you should have subscribed to the print company "enhanced security" subscription for a printer you didn't even ask for.