Sometimes its best to let people do what they do. I would think they stole your compost for better reasons then they thought yours were. I don't have stealers here but I live too far from criminals. I did have a kid that rode my bike and locked up the engine though. They did bring it back for me to fix as well. Nice fellas. I am sure its one of my kids or their friends. My kids bring out the worst in me sometimes.