In movies I really dislike when a character accidentally, especially if they are not intelligent and bumbling, helps or even stumbles upon the thing that "saves the day" or otherwise resolves the conflict. Examples:
Jar Jar Binks being clumsy and he somehow destroys enemy troops and tanks.
In Transformers: Revenge of the Fallen, those two bad stereotype sounding autobots start fighting and break a hole in a wall where they find what they needed to advance the plot.
Jar Jar Binks being clumsy and he somehow destroys enemy troops and tanks.
In Transformers: Revenge of the Fallen, those two bad stereotype sounding autobots start fighting and break a hole in a wall where they find what they needed to advance the plot.