Series Of Unfortunate Events: The Carnivorous Carnival - What About G Forces?
In the beginning of the book, in chapter 1 when the three children are in the trunk of the car, it says "The car lurched left, and the Baudelaires lurched with it, rolling to the left-hand side of the trunk, along with many items Olaf kept in his car to help with his dastardly deeds." If the car made a sharp sudden turn left, the Baudelaires would have slid to the RIGHT side of the trunk.
That would be due to centrifugal force, except that that doesn't exist, because it's inertia. But anyway, If he turned left, it might turn left and stop or jerk quickly, which would cause the children to jerk to the left as well. This is quite likely in a "sharp" left turn.