A creeper had this to say about people moving onto his land.

I am the monster?
These people move onto our lands, kill my friends, my animals and I am the monster?
You defile the Earth for its dirt stone and ores, you build were ever you want and I am the monster?
You destroy the habitat by cutting down any tree you so choose and we are the monsters?
You are the humans and we are the creepers.
YOU are the real monster here.

We believe everything in Minecraft has a purpose.
Trees provide shelter for us
Sheep give us wool for warmth
Your purpose is to bring death
And our purpose is to stop you.