The "asked" question about dropping a MacBook is not something, "unusual," or bothering to me. This is exactly what I would also ask to people who does own a mac. I as well have the same curiosity on what would happen to a laptop when dropped.
It's easy to say that a laptop will be broken when dropped, but to what extent.
I'm not biased to PCs or Macs since I personally own a desktop PC and a Mac mini. I have plans to switching to laptops in the future therefore have done some "window shopping."
To some extent, laptops when spilled with a cup of water does still work fine. Some laptops when dropped still works fine.... these are some of what I've heard, most of which are PCs. Below is a link stating why buy toshiba, and it has some tests done into it regarding dropping, etc.
http://www.pc.toshiba-asia.com/whytoshiba/
I hope Macs does come up with something like the contents of the link in the future, so that people will be informed on the durability of Mac laptops.