Ridiculous Reason For Flight Delays Right Before Takeoff
Mouse On A Plane
In 2017, British Airways had to compensate 200 passengers when they had to change planes because a mouse was found on the first plane. This plane-change was required not because of any cleanliness problems with the mouse, but because the mouse could have chewed through the wiring which could have been very dangerous once the plane is airborne.
Because if there’s a fatal electricity fault then it ain’t going to be pretty so precautions should been taken into consideration.

Mouse On A Plane
The chewed wire was found between the back of the plane (also known as the “tail”) and the “ram air turbine,” which is ironically abbreviated to RAT. The flight on the new plane ended up taking off over four hours late.