Originally Posted by Lurker1999

Not a good idea. As has been mentioned on this board, if you find something on a plane and then are a 'good citizen' and turn it in all you do is subject yourself to hours of scrutiny, questions, delays, etc. Doing the right thing doesn't get you anything but grief. The best course of action seems to be to either leave it be or take it off the plane yourself and dump it when you get to the terminal.