Freaky. Notice any patterns?

[captainspiffy]

On the twelfth day of Christmas, captainspiffy sent to me...

Twelve ravens swordsmithing
Eleven swords zombie-hunting
Ten demons a-blacksmithing
Nine books acting
Eight zombies a-roleplaying
Seven cats a-writing
Six ninjas a-drawing
Five ja-a-a-apanese films
Four video games
Three kingdom hearts
Two playing cards
...and a hockey in an anthropology.