The chemicals used to "reverse" a hermie are bunk-- and can be dangerous to your health.
Like the man said- almost ANY MJ plant can hermie if stressed-- SOME stress at the drop of a hat, others have to really be badly "manhandled" etc.. to hermie..
then there are the genetic hermies...
Stress hermies are MOST likely to pop out yellow finger-shaped "bananas" inside the female flowers. These drop small amounts of pollen into the plant... but it CAN spread thru the grow via fans or plants touching etc... they are so small and so hard to find, these can rarely be "fixed" per se.
Then SOME stress hermies will get a few full-fledged male flowers, usually under or IN the base of the female buds...
IF you know what is stressing them-- fix it!
Then pick off all the male pods every day as you find them. If after a week they are still forming-- there is either still a stress issue, or they are genetically flawed and can't be "fixed".
MANY hermies occur at the end of a grow, as the act of growing them under artificial conditions is a stressor in itself... since these plants usually veg MUCH longer and go thru many different lighting changes thru the grow season outdoors... if this happens, best thing to do is check the trichomes to see how far from harvest you are-- and have an early harvest if possible... a couple weeks early for one plant is better than it spewing pollen all over the grow room!
Then there are your flat-out genetic hermies... they almost always start out as hermies-- within the 1st couple weeks of 12/12... getting both male and female parts almost simultaneously. These are crap plants and should always be culled.
No need for revenge, just sit back and wait.
Those who have hurt you will screw eventually themselves; and if you are lucky, God will let you watch!
Through What we create- we are immortal.