confused about scarecrow's drug in batman begins
say you get sprayed with this stuff, which of the following is true:
a)it lasts until you get the antidote
b)it wears off eventually, but the antidote can end it immediately
c)the effects will become permanent if you don't get the antidote within a time limit
i'm confused because when falcone got sprayed, then later rachel visited arckham he still seemed insane (which led me to beleive that the effects were permanent). crane/scarecrow gets sprayed, later when he's getting questioned by gordon he does mutter "scarecrow" a few times, but he doesn't seem nearly as insane as falcone did (was the drug wearing off?). bruce/batman gets sprayed and gets the antidote 1 day later. rachel gets sprayed and she apparently needs the antidote right away!
so were the effects permanent in crane? if so don't you think it was kind of cruel for batman to spray him; "taste of your own medicine doctor?". sure crane if obviously pretty evil, but doesn't it contradict what bruce said earlier about compassion? when he refused to execute the murderer?