Eh. The building said "free" on it. There weren't any instructions. There wasn't any inclination that it would take like 20 days of one friend giving you a gift every day to complete. There wasn't any hint that you wouldn't be able to build any other "free" buildings while that one was in construction. And worst of all, there was never any warning that not only would I not be able to move the building until I was done building it, but that I wouldn't be able to cancel it either if I changed my mind.
So yeah. You can understand my animosity towards that particular structure.