Alice purchases a jug of water and places it on the counter as he sits down to read a newspaper and eat his other purchased food. It comes time for the shop to close, and staff come to remind Alice that the store is closed and that he must leave. Alice leaves his water on the counter with the purchase receipt inside the handle of the milk jug. 

The staff are then cleaning up around the store and see it and place it back on the shelves even though the receipt which they mindlessly picked out and tossed into the bin clearly showed that the pint of water had been purchased by *someone*.

Has the shop appropriated property belonging to another without making reasonable efforts to locate and contact the owner?