Answer:
I fly away as soon as you set me loose. People around you may slowly move away once they sense my presence.
I stay where I am when I go off. What am I?
No matter how hard you hit me, no matter how much I hurt, I'll always go for a laugh. What am I?
I am black, white, and read all over. What am I?
I speak without a mouth and hear without ears. I have no body but I come alive with wind. What am I?
Disgusting creatures that would survive a nuclear strike.