Dark Knight question, why couldn't the banker guy just remove the device from his mouth?

Question

During the beginning, when the Joker put the smoking thing in the guy's mouth

Answer 1

I KNOW!  I was asking my friend that throughout the entire movie D:

I mean, if someone were to put a smoking grenade in my mouth, I'd certainly spit it out immediately :/

Answer 2

The device was a grenade.  The Joker removed the firing pin which made the grenade live.  As a safety precaution, this particular grenade had what is known as a safety lever.  Even with the pin removed, the grenade won't detonate when the lever is depressed.  Had it spit the grenade out, it wouldn't have rolled very far and would have exploded in a few seconds.  If I'm remembering correctly, his arms were restrained, so he couldn't hold down the lever.  He kept it in his mouth because if the Joker hadn't killed everyone, someone could have found him, removed the grenade (while continuing to hold down the lever) and inserted the pin.  Not a fun wait, but he could have lived.

If he knew he was going to die anyway, he should have spit it out and taken the Joker with him.

Answer 3

Maybe he knew he was going to die and was like to h**l with it!

Answer 4

After the Joker stuck it in the Bankers mouth the pin dropped out and if I  am not mistaken when a pin drops out of it and  if you move them they go off.

When the smoke came out I took it he done it as a joke since he  is the Joker.

Answer 5

Maybe it was tasty! =]....Theres a new one for McDonald's!

Answer 6

Because he's stupid.