Answer:
When I am caught, I am thrown away. When I escape, you itch all day. What am I?
When I get closer my tail grows longer but when I go away my tail leads the way.
I travel in a gaggle.
I cannot be felt seen or touched. Yet I can be found in everybody. My existence is always in debate. Yet I have my own style of music.
I am an activity dogs are very good at when a ball is thrown.
I flow from the Homerβs mouth when he sees doughnuts.