<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Eastbay1K:
An airline ticket is a negotiable instrument - transferable, endorseable, refundable (of course, subject to restrictions)</font>
Wait a second. If every one of these possibilities is restricted so much to make it impossible, what's the difference between that and a non-paper ticket? Most tickets I've ever seen are not transferable, not endorsable, and not refundable!