Reverse Missiles / not an "attack"

[ericthered]

Originally Posted by RGTraynor

(Beyond that, how in the merry hell is the spell divining the intent of the "attacker?" The spell's sentient? It's able to read the mind of the attacker, divine his intent and act upon it? Does it then not work at all upon an automatic trap/weapon system, or a missile with internal homing capability? And if so, shouldn't Mind-Reading be thrown into the prerequisite basket?)

The other option is that the missile is "reversed", that is, turned around and sent back on the path from whence it came. This is my favorite opinion, and its supported by the name of the spell, but its hardly an unassailable one.