A sudden change in the direction of heeling can cause unwary passengers or crew to lose their balance or even go overboard.
Twenty thousand feet above the Mediterranean, Alitalia flight 1618 bounced in turbulence, causing passengers to shift nervously.
The whole front half of the ship was quickly engulfed, causing passengers and crew to flee to the stern of the ship.
Almost every station in India sells a regional specialty that causes passengers to dart on and off of trains.
Its brief said, "It is the fact of begging that causes passengers on the subways to feel intimidated."
The aircraft crashed on landing, causing the Russian pilots and Congolese passengers to sustain serious injuries.
Making yourself noticeable is one thing - but causing innocent passengers to shrink off with feelings of shock and repugnance is a different game entirely.
On the return journey up the incline from Coombe the engine ran out of steam, causing passengers for Plymouth to miss their last connection.
The fire was concentrated in the midsection, causing passengers to head for the bow and stern and hampering launching of the lifeboats.
Her other problem was her vibrations which caused passengers to become nervous.