Finders Keepers, Losers Weepers?

We've just come back from a lovely few days at Meathop Fell site.  I'm a bit disgruntled though... Going into the toilet block midway through the first afternoon I realised that the shower gloves lying on the side shelf were mine (very recognisable as they'd had a mix up with a 'blue wash').  However there was no sign of the very nice body scrub and my travel container of shampoo that I realised I must also have left behind.  The following day as I picked up my newspaper there was a lady handing in site keys and she was saying she too had left toiletries in the showers, only to find them gone when returning shortly afterwards.  If you find a 50p piece in the street then perhaps Finders Keepers, Losers Weepers would apply, but in a  'Members' club surely we should be able to expect that if you inadvertantly leave items behind in a private club area, that they would still be there when you return later the same day, or at least be available to collect from the wardens.  Yes it was careless of me to leave them in the first place, but it's something many of us has done.  All that aside the site was well worth the visit, the wardens were really friendly and helpful, facilities were great and the birdlife was incredible.