Fly out of bed
Hit your head on the fan
Watch as it swings 
Dress as fast as you can
Storm to your sister's room
Don't knock, lightly tread
Then bust through the hinges
And leap on her bed.
Shake up the bed
And scream there's a spider
(She'll wake and be mad – but efficient is nicer)
Then skipping with energy, your sister will strut
Go to your brother's room
and jump on his gut.
With an 'oomph!' and a 'hey!' he'll be up and okay
which is great cause it's eight,
it's time for the day!
Once he's awake then dive on your parent.
Yell really loud
Because who needs a larynx?
And this time the dog and the cat are excited
And maybe the neighbors cause their windows are lighted.
Your parent, or two, or grandparents, whoever
Will leap with a start like you twisted a lever,
Now – with sister and brother, parent or pops
With dog or a cat while your neighbors eavesdrop
Lightly tip-tap trepidatiously so
To the tree where the small batch of presents will go. 
And ohh what I sight to behold for the day
before dawn and the rooster has crowed in its way
For the presents, the stockings? Aren't filled!
How absurd!
And that's when you realize it's the 23rd.