The airlines have been working on this for months. Notices at check in on the outbound flight, notices on all seats outbound, PA's, notices at check in Spain/Canaries etc,etc. One lady on my flight yesterday admitted to the crew that her pack of 200 in the hold had the lighter still taped on, so we had to unload all the bags to find it. She was very sorry to cause a problem (she wasn't even a smoker) but better to be safe.