The living and the dead

Two men go into a restaurant and both have a glass of ice cold coke. The glasses both had the EXACT same contents. There was same amount of poison in the glasses. One man drank his coke fast and lived. The other man drank his slow and died. Why?

Answer:

The poison is in the ice.
The person who drinks fast finishes it before the ice melts and the poison gets into the coke. Hence he survives.