I'm playing though Luigi's Mansion on the Gamecube disc but using my Wii and had a weird glitch I thought I'd share.
While in the dining room where you get the Ice Element, I walked to the right to hit the flip switch to get on the ceiling, no problems there. Then I walked to the pad to put me on the table however, instead of flipping me down, it flipped me up a second time, and I ended up on the Balcony, and tripping the 50 Boo boss fight. Both doors were locked and I didn't have any ice to fight them with. It was not good times, lol.