I get a lot of butterflies at auditions because I get so scared. It's scary because you've never met the people before. You have to meet them, and you have to hurry up and get to know them in five seconds. And then, you have to spill your emotions out to these strangers. It's funny.
Instinct of love toward an object demands a mastery to obtain it, and if a person feels they can't control the object or feel threatened by it, they act negatively toward it.