With hot potatoes in my pocket to keep my hands warm

I should have elaborated. I didn't mean not to prepare rather I was offering a sentiment that excessive preparation is unnecessary. No one should go into any interview cold, but neither should preparation take weeks to do. Read online. Go out a day or two early. Pay for the prep, and call it a day. The airlines are going to hire thousands upon thousands in the next 5 years. If you don't get a job offer it won't be because of a lack of prep, it will be because of a "skeleton" in your closet, or a personality quirk that you can't hide, or something else most likely outside your control.