Not sure if this counts as clumsy, it's that or one of my cats tried to kill me...
This morning I was heading from the livingroom down the hall (in semi-darkness) when I saw white bits on the carpet. So I was reaching with my right hand for the hall light on the left side, when I noticed that the white bits moved and my feet were connecting with my 17 lb black cat, who has white toes. So I crash into the hall closet door knob, and twist my knee on the way down. Herald, the cat, usually heads back to my bed after he eats breakfast to get away from Callie (the new cat). I have no idea why he decided to lounge in the middle of the hall. Now his feelings are hurt because I kicked him. Either that or I scared him from the crashing and yelling.
One other disclaimer. I have permanent vertigo from an old head injury. So I have trouble keeping my balance in low light. Long ago I learned to cope with the problem, but when I do actually loose my balance the results usually aren't pretty.