I went last year on an interview and was a complete failure. They did not have things prepared and I did not know how to answser when the two people interviewing just kept looking at each other. It was very stressful.

The company they are executives with is growing and there are other jobs I would like to apply for.

My question is this,

Since I looked so dumb in the interview should I even apply again? What if I do and they call, should I apologize?