not sure why all the downvotes. The stewardess asked her if she was too "sick" to continue the flight, so that might actually have been the cause: She noticed s

not sure why all the downvotes. The stewardess asked her if she was too "sick" to continue the flight, so that might actually have been the cause: She noticed she is getting paranoid about the neighbour scribbling strange things, and leaves the flight. Now, the "officials" investigate the guy, just to be on the safe side. I don't think this scenario is less likely than assuming that the woman was really that "stupid" to behave that way.