It is important to be aware that the oral route is ineffective for certain drugs, like heroin, as the stomach destroys them or makes them less effective. Heroin is changed into morphine in the stomach, and once the morphine has been absorbed into the bloodstream, it passes through the liver on its way to the brain. During this journey through the liver, so much of the morphine is destroyed that only a fraction of it reaches the brain. Therefore, swallowing the small amount of heroin possibly contained in an ecstasy tablet would not have much of an effect.
It's really a shame that the Establishment doesn't apply itself to teaching people how to use drugs intelligently and creatively, since, clearly, such paths to competence and maturity exist. If I had known ten years ago what I have learned through much reading and thinking, I would have saved myself a lot of money, and, more importantly, a lot of grief and self-destructive behavior which I have, fortunately, survived.That has to be one of the most intelligent things I've read.