From
http://www.d20srd.org/srd/magicOverview ... ptions.htm :
Quote:
Target or Targets
Some spells have a target or targets. You cast these spells on creatures or objects, as defined by the spell itself. You must be able to see or touch the target, and you must specifically choose that target. You do not have to select your target until you finish casting the spell.
If the target of a spell is yourself (the spell description has a line that reads Target: You), you do not receive a saving throw, and spell resistance does not apply. The Saving Throw and Spell Resistance lines are omitted from such spells.
Some spells restrict you to willing targets only. Declaring yourself as a willing target is something that can be done at any time (even if you’re flat-footed or it isn’t your turn). Unconscious creatures are automatically considered willing, but a character who is conscious but immobile or helpless (such as one who is bound, cowering, grappling, paralyzed, pinned, or stunned) is not automatically willing.
Some spells allow you to redirect the effect to new targets or areas after you cast the spell. Redirecting a spell is a move action that does not provoke attacks of opportunity.
That's not how we normally play it exactly. I think we need to think about the ramifications of this- I know I do. Note that I don't think this denies creatures their save on fireballs as written, but it does make them willing to be plane shifted to the 9 hells. This change would apply to KOed creatures, not merely ones that are asleep. I know I've always allowed people to teleport out with their KOed comrades, so I guess this makes sense.
Hrm. Still funny can't pin down why.