Lap3, I think you could be right on the "pissed" part. Haven't seen him like that in a while. I thought HE was going to "shove" the mic somewhere. LOL
The kill switch I believe is for emergency use--following DE's accident I believe all cars were made to have them. Don't quote me on that one, think that's what I read. Many drivers had them previous to that but was a choice. I believe they're for using when you are going to make an impact at a high rate of speed. Someone with more knowledge is going to have to fill you in. In any case, I got the impression that whatever happened Harvick hit his accidently as they mentioned it was on the steering column. Please, someone correct me if I'm giving the wrong information. It's happened before!! LOL