Just as bad in LCC's. I've had crew on some of my flights lose purses, ID tags and the odd mobile phone (and that's usually from the forward galley (737) which is unattended during service by default). Lifejackets are always popular and a few times the seat belts have been cut out (makes one wonder what airport security is looking for
) The problem is the turn arounds are so rushed nobody realises until well after the fact.