Do you mean things like removing the say, world say etc verbs for a customizable input bar to reflect each kind? I also use a collision detection proc that creates an obj, defines the dir, speed and loc, and determines when its about to it a dense atom and what to do for each type. I've been wanting to reserve the Bump() exclusively for mobs. No real reason why, other then it ends up looking a lot cleaner for all the types of objs I create. Other then that I kinda stick with the usual means.