Originally Posted by StarG
I only know wrong gender ticket can be a problem.
I was travelling with a staff for which somehow TA issued his ticket as a "Ms.".
He almost couldn't check-in for the flight. At the end only after my TA promised to send a new replacement ticket to airport the next day, and I guarantee that with a credit card, was he allowed to fly.
This happened to my SO. All her WorldPerks material (flying NW, of course) was printed with a Mr. She wasn't very happy with that, though she never once did receive a strange glance. Likely because her name can't be taken for a guy's name.
In any case, when she made elite (thanks to myself, of course), we quickly fixed up the issue and changed it back to a Ms. Of course, we had requested this earlier. Seems Northwest only really cared once she turned elite.