My friend moved into her house a year ago. Earlier in the summer in her enclosed back garden she found a full size plastic domestic bin buried in a flower bed with the lid at the level of the soil. This contained bird feed (fat balls) and some other rubbish (?what). The bin was stuck fast, and she was looking at options to remove it. Last month, she suddenly noticed that the bin was lifted out of the soil, lying on its side by the perfect shaped hole that it had left behind. Few knew about this bin and no one had been given access or permission to remove it. There was a brief period in November when her side gate was unlocked. This is an unexplained incident and a little disturbing. Why would the previous owners have a bin buried in the flower bed and why, what, whom would have lifted it out?