Or perhaps trying to type with one hand while the 
other has a ferret sleeping in it.  Right now 
(funny you should ask this) it's my youngest one 
and it's quite odd becaue he doesn't do it very 
often - only when he first wakes up or if he's 
tired.  My other little guy will claw at my leg 
or bite my feet until I pick him up and then he 
goes to sleep :)