To live peaceful in a world without other animals (including humans), maybe. It would be a forest inhabited only by plants, and my single companion would be an A.I. I would be a little kid, I wouldn't get ill, I wouldn't age, and i would live forever. The A.I. would take care of me.

I think that one is my favorite one.
It's just a silly little fantasy. I know it's not very guro...