My first chin got his name because he hadn't yet learned how to run on a tile floor during bathroom playtime. So while I sat on the floor, he ran the length of the bathroom and suddenly stopped moving all four feet. But instead of stopping (or rocking back and forth like he does now on his wheel), of course, he slid and skidded right into my leg. BANG! Then he kecked at me, because clearly his lack of understanding of physics was *my* fault. So I looked at him and asked, "What happened? Did you Crash into Me?"... and thus, he got his name.
As far as "oh crap!!" dumb moments, though, the kicker of my three is YouBe, who tried to wall surf off of my chest when I had the top door of the Ferret Nation open and instead, skidded off and hit the floor just as my former feral cat walked into the room (after pawing open the kitchen door). So falls 4 feet onto hard wood and lands right in front of a predator. YIKES! Thankfully I hissed at the cat and got him cornered and scooped him up before any damage was done, but we both (me and the cat) got kecked at for that one!