-tripped and fell, whilst carrying a 30+lb box o' books. The box saved me. Think of it as a shield of sorts.
-cut my finger with an exacto knife.
-locked my car key (and wallet, etc.) in my car. It was still hanging from the ignition. And the only reason I noticed my keys were missing was because I needed to unlock ze auto to pop the hood. Why did I need to pop the hood? Why, to jump start ze auto, of course. Why did I need to jump start ze auto? Duh. (I think it's a malfunctioning starter.) The only thing I had not locked my car was my phone. Thank God for friends!