I am a vicous man-killer when i am angry but I am gentle and calm when I am happy. I can be a home pet but my fangs dont suit the job. I have a legend about me but I know it might not be true.

I may look scary but I am not really that scary. I may walk into your garden but then I would tell a lie.

What am I ?

I live, yet don't breathe,

I am freezing.

I am never thirsty, but i always drink.

WHAT AM I?

Poor people have it,
rich people need it
and who does not eat it, dies.