Answer:
I go around in circles, but always straight ahead, never complain, no matter where I am led.
I go from house to house a messenger small and tight. Whether it rains or snows I sleep outside at night.
What goes through a door but never goes in and never comes out?
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?
My keepers feed me colored balls. With sticks they store on my den walls. Sometimes I store them in my pouch. Sometimes deep in my belly; ouch!
What never gets any wetter no matter how hard it rains?