I wonder if work would accept "my kitten jumped up into my lap and demanded that I pet her" as an excuse for being late.
Eh, probably not. :)
In the story of my life, I didn't sleep well last night (I woke up around midnight with a whiring brain), I've been tired all day, and now that it's time to go to bed... I'm awake. Tired, feeling cruddy, but mentally awake. Frack.