No, since you can freely speak to them afterwards. They're rambunctious, but not evil.
DoorToNothing — I dreamed last night... I got on the boat to Heaven!
And by some chance, I had brought my dice along! — 01:26, September 24, 2009 (UTC)
And for those of us Tim-Burton fans who watched The Nightmare Before Christmas, the kids actually do change sides toward the end of the movie; they aren't evil as Oogie Boogie is, they just tend to be helpers. They help Oogie Bogie, and later help Dr. Finkelstein.