I'm not sure whether this is incredibly creepy or incredibly funny, but here is my story. The first time I embarked in a .34 evil biome, I made the mistake of butchering some animals.
I usually bring several extra turkeys with me because they are an excellent use of starting points. A single turkey provides up to 19 meals plus 6 bones, a skull and a hide. Four turkeys can almost outfit a entire marksdwarf (bone helm, greaves, gauntlets, crossbow and bolts plus leather armor, quiver, waterskin and boots).
So, I embark in an evil area with my usual rafter of turkeys with the intent of setting up a few marksdwarves ASAP. While the undead were milling about the edge of the map I told my soon-to-be marksdwarves to start gathering plants (mainly so they have one civilian skill). The miner starts digging a defensive ditch while the carpenter is cutting down trees, making a wooden weapon rack and shields. The farmer sets up a butchery and tannery and I give the order to have one of the turkeys put down.
The farmer grabs a turkey, drags it over to the butchers shop and very neatly separates it into its constituent parts. Next, he grabs the skin and takes it to the tannery to turn it into a piece of leather. A moment latter, all my dwarves scatter and the announcements page is filled with red interruptions. I thought the undead were attacking already, but it turns out that the turkey skin reanimated before the tanning process was complete. Fortunately, nobody was injured. The dogs I brought with me promptly tore the turkey skin apart.
Can you imagine a hollow turkey skin flopping about angrily and radiating pure hatred for the living? Yeah, me neither.