This is a general question about the theoretical possibility of having
something like a "rape vaccine".
If someone who is being attacked has a certain physiological state
(related to fear, stress, etc.), and the person who is attacking has a
certain physiological state (related to arousal, agression, etc.), is
it possible to develop a "vaccine" that women could take that will
release certain chemicals under attack that will be selectively toxic
for the attacker?
Thanks for any responses in advance.