I just found this thread and can certainly relate

... I too did the "unthinkable" and invited my MIL last year (2006)... I thought I was doing a nice thing since she had never been to WDW before and had always wanted to go and had always heard everybody talking about it ... so I figured it's WDW

, the happiest place on earth, how can anyone be anything but happy here!

...
So we decided to make it a family affair and I also invited my mom and dad (they went with us the previous year (2005) and we all had a great time

) ... so there we were, the five of us: me, my DH, my DMom, my DDad and my MIL ... so I planned and planned and made sure I had our itinerary just right and all our ADR's made 180 days in advance and all the cute little matching extra travel items bought and ready to go (i.e, umbrellas, ponchos, luggage tags, etc.)

... well, long story short, within 24 hours of arriving at the most magical place on earth, my MIL had me in tears

... we were in the AK parking lot and I was like, oh my gosh, how could this be?!, and we still have 5 days left!!

... so I took hold of myself (thank goodness for my mom

), and said ok, I was the one with the great idea to invite her

, we knew what she was like and capable of, just suck it up and don't let her spoil things ...
So in conclusion, Was the trip a total disaster? ... no ... Did it have it's moments

? ... yes ... Am I happy that I did it? ... maybe ... Would I do it again ... definitely NOT!!

...
Good Luck and enjoy your trip!!