How to remove a scenenode?

[t]

Hello,
In my game my spaceship shoots bullets which are done with billboards. I want the bullets to expire after a certain amount of time, or when they hit something.

The question is, how do I remove them from the scene when they're finished? Do I call the node's drop() method, or something else?

[[dx/x]=HUNT3R]

Check out the way Niko did it in the techdemo...