I developed a new drug. Totally legal- anyone can take it.
99.5% of the people who take this drug will feel great and safe and warm, but .5% of the people who take it will go insane and start killing random people- from the insanity of course.
But it's as safe as a condom and 99.5% of the time it's a freaking great drug to take. But if you go insane, I cannot be held responsible for you actions from taking my drug.
Would you take the drug?