Weird news - Stealing a giant bronze hippo

Sometimes when an item is stolen, people stop and wonder as to how it can happen. Consider a large large animal sculpture in a park, and when I say large, I mean large. This hippo sculpture, made of bronze (and hence somewhat valuable) weighted as much as 1500 pounds, so obviously it was not the work of one person. In fact, it must have required some heavy machinery to have moved the sculpture, and would have taken some time, so a bit puzzling about how no one noticed that the sculpture was being stolen (link to article):

A giant hippo is missing in England. No, it is not real, and yes, it is made of bronze. The 6.5-foot goliath statue, weighing at a whopping 1,500 pound was reported stolen on Friday, CNN reported Kent police saying in a news release. Reportedly, the hippo is believed to have been stolen when someone forced their way into Chilstone Garden Ornaments in Tunbridge Wells.