I've only ever done one and I got that job. Had no idea it was going to happen and when they pushed the paper in front of me just ticked the boxes. Personally I think that interviews and sim rides sort the men from the boys (failed one of those too). Those conducting interviews should have lots of experience in the field and be able to weed out those that aren't applicable. That said have worked with a few guys (and one girl in particular) that were not a whole lot short of hopeless and we all jumped through the same hoops to get the job..........Go figure.