That is the biggest mystery of them all.

- Charlie Bucket? - Yes, Mr. Turkentine?

I shall need an assistant. Come and give me a hand.

We have here nitric acid, glycerine...

and a special mixture of my own.

Together it's horrible, dangerous stuff. Blows you up.

But mixed together in the right way, as only I know how, what do you think it makes?

- I don't know, sir. - Of course you don't know.

You don't know because only I know.

If you knew and I didn't know, then you'd be teaching me instead of me teaching you.

And for a student to teach his teacher is presumptuous and rude. Do I make myself clear?

- Yes, sir. - Good.

Now, mixed together in the right way these three highly dangerous ingredients

make the finest wart remover in the world.

The trick is to pour them in in equal amount.

Now, Charlie, you take the nitric acid and the glycerine,

and I'll take my own special mixture. You ready?

Good lad. Pour.

Did we do it wrong?

No, certainly not. This is for very big warts.