Answer:
When they are caught, they are thrown away. When they escape, you itch all day.
I move very slowly and carry my house on my back. What am I?
When it was young, it had a tail. When it grew up, it had knees
Black and scary, small and hairy. In the night you hear it preach, Through its noisy high pitched screech.
What has a coat? Hugs you not in sympathy? Whose smile you'd rather not see? Whose stance is a terrible thing to see? Who is it that brave men run away from? Whose fingers are clawed? Whose sleep lasts for months? And who's company we shunt?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?