Let me recount the Omnimover incident....
A group of us rode Aerials Undersea Adventures. Myself and a friend sat in one clamshell Omnimover, Michelle and another friend behind us. All was well through the first scene with Scuttle. As we rotated to face backwards to descend, and expecting to see the back of the Omni behind, we were surprised to say the least to see Michelle and Harold still facing us, now leaning towards us due to the incline and against the safety bar. As if that weren't enough, their vehicle instead of leveling off proceeded to swivel to face a blank wall, as it did for the first Aerial scene Part of your World. Imagine the hysterics. For the rest of the ride it rotated at will, obviously throwing a gear or a cog and loosing all idea of which way it should face. Naturally we reported all this as unload and tagged the vehicle. Not bad for less than a year old.
And naturally I have it all in HD