[tetsuo13]

It leads the reader to believe batteries are more dangerous than the water. While that might be true, it leaves out the reasoning behind 3-1-1. The batteries may be more dangerous than a bottle of water, but they are not more dangerous than a water bottle filled with liquid explosives.

How about:

Batteries may be more dangerous than a stick, but they aren't more dangerous than a man poking you with that stick.

Batteries may be more dangerous than a kitten, but they aren't more dangerous than a kitten who is about to jump with claws ready on your face.