Answer:
When they are caught, they are thrown away. When they escape, you itch all day.
A king without a crown
I am wingless but airborne, and when I meet your gaze tears will fall from your eyes. What am I?
I am a predator with a strong jaw. I live in water and have lots of sharp teeth. What am I?
I have a mane like a horse but stripes like a zebra. What am I?
What is so fragile that saying its name breaks it?