To Flight Safety:
In relation to your man falling out the door of the cornering car, I believe we have discussed this exact point on page 2 of this thread with your introduced example of the man in a van on rollerskates. I had provided an answer at that time, and will be happy to re paste it here if you require. We were discussing points 13 and 14 of my logic chain on centripetal that explains your question, though I note you chose not to respond to any part of my explanation (is it because I interupted you?).
At the end of the day, centrifugal is only as real as the force you feel pushing you backwards when your car accelerates in a straight line - I.E. it is "felt" and seems real, I.E. it is "apparant" not "real".
...but then why does a man whom is running along with his dog on a leash.....