You paid for the building, you got it. If someone outplays you and plunders that building you too bad - it’s part of the game. You need to stop whining about this dude, it’s completely fair and part of the game. An IMAGINARY game!!! Not real life. Nobody is stealing from you. And if you don’t want to be plundered just collect your damn stuff on time. Geez it’s not that hard. If you set an 8 hour production just pull out your phone or hop on your computer 8 hours later to pick it up. If you leave your stuff lying around it’s bound to be taken.