This is the kind of question that pops into my mind when I am unwrapping an SE mat cutter blade. I can never remember from one blade to the next whether the sharp edge is pointing towards me or away from me. Why don't they wrap those blades with the bevel on the up side of the blade?
The thing that prompted this question was someones signature asking why they always have one odd bumpon left on a sheet. I recently noticed that droped bumpons (the clear flat type) seem to land sticky side up, I think that this is caused by the aerodienamics of the bumpon. This made me realize why I seldom have an odd bumpon.
It also brought to mind an experiment that I conducted along these lines a few years ago. As we all know cats always land on their feet when dropped and toast always lands buttered side down when dropped. So being mechanically iclined I took our large house cat and attached half a loaf of toasted garlic bread to it's back, buttered side up. This created an interesting phenominon. When I pushed the cat off the kitchen chair the cat was levitated and began to spin. Apparently both the cats feet and the buttered toast were struggling to hit the ground first. I toyed with the idea of attaching a pulley to the cat and running a drive belt from the cat pulley to my blender to make margaritas without consuming electricity but I relized the spinning cat would probably puke and I hate to clean up cat puke so I abandoned the whole idea.