"The first story is a mundane occurrence"
It looks like another diagram is required. This time as seen from above.
The clock, despite its position on the window ledge, being in direct line of the sink, somehow did not fall into the sink, but instead was found on the floor, forward of the sink and pedestal? And how an object with a weighted base, somehow manage to move from its position, hard against the window frame, at the back of an eight inch deep window ledge, then travel over a sink of 19 inches projection, to end up a further 15 inches forward on the floor?
As I said, no mice, no pets, nobody in the bathroom when it happened. I was awake in the bedroom directly opposite (doors facing each other) at the time, so I know that nobody entered the bathroom between me using it, clock on window ledge, then me reentering the bathroom a short while later, to find the clock on the floor.
And no, it did not fall into the sink and bounce up out of it onto the floor. It's made of plastic, not rubber.
I did not hear the clock "fall", despite being awake a few feet away. I simply found it on the floor.
I don't call it a mundane occurrence, far from it.