It's a 11' thin and light laptop, it is easy to abuse of the portability and ending up using it in places such as on bed, sofa, moving it around the house, etc...

Not saying that OP shouldn't be more careful with such an expensive piece of hardware, but accidents happen, and some people are more careless than others (I'm one of them and a smartphone or tablet of mine doesn't even get out of the box withouth a matching protective cover).

I can't remember ever dropping a laptop. I'm sure I have, but not so many times that I'd remember... multiple of them. And I'm not terrible agile to begin with. Just sounds like carelessness.