Regarding the bunt the pilot was reported to have done to give the passengers a "thrill." I recall one flying school at Essendon that did similar maneuvers on young air training corps cadets. I watched as this particular pilot would take up three kids in a C172 and subject them to extreme negative G during a quick circuit. After landing he would taxy like the clappers to the Essendon Terminal and take another three cadets and repeat the exercise until he had gone through about 20 kids. Some were airsick poor little kids.