Bbdave, unless you bought the keg/cask from someone legitimately then it still belongs to the brewery or the administrators supposing the brewery went bust. At 75 quid each casks are our most valuable asset and are actually worth more than the beer in them. Rather than harbour potentially hot property (no pun intended) kegwatch offer a no questions asked means of the container making its way back to its rightful owner. Oh, and for reference, publicans do not own the containers, casks, kegs that many seem ready to give away... They are the guardians and are responsible for looking after the container that they have been loaned.