LSD
Dosing the water supply might well work better on wizards than on muggles. Muggles chlorinate their water supply, and even a small amount of chlorine will rapidly inactivate LSD.
Then again, some natural water sources have that amount of chlorine in them anyway.
Dosing the water supply might well work better on wizards than on muggles. Muggles chlorinate their water supply, and even a small amount of chlorine will rapidly inactivate LSD.
Then again, some natural water sources have that amount of chlorine in them anyway.