Dude-- you heard wrong..
You MUSt spray with 3-in-1 that contains neem & pyrethins ASAP--- if you are allready to the point of the spots--- they are suching the leaves, and will KILL the plant--
rubbing em off is redundant- cuz you are adding to the damage by adding oils & salts from your skin to allready damaged leaves...
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.