Subject: If bitten by a poisonous animal, do people die by shock ?

I have heard that most people bitten by a poisonous animal (say a rattle 
snake) die because of the shock and not because of the poison.

So if one gets bitten by a rattle snake and he/she remains calm (by 
remembering this question/answer from MadSci!)is it true that he/she will 
not die ?

And (if you don't mind):
What animals / plants produce a poison strong enough to kill somebody even 
if he/she doesn't get a shock ?

Thanks for the answer,
Manfred

Re: If bitten by a poisonous animal, do people die by shock ?