Well, let's see:
-click on Apple Menu, select "About This Mac"
-click and drag my hard drive icon from my desktop to the newly opened window
-wiggle around a bit
-let go
-hard drive zips back to its corner.
Are you doing something different? ...aside from the whole exploding-Finder thing.
BTW, just for completeness, I tried explicitly switching to Finder first, and I tried the diffrerent "tabs" in About This Mac (ie "Version 10.1.2" vs "Build 5P48"). All combinations were uneventful.
...amazing how some people will go out of their way to try to crash their machine.....
-alex.