Did you know you can have fun without placing your passengers at undue risk....
Maybe one day we will read the AAIB report of someones similar attempt at fun, it's sad because its without need.
Personally if you cant see the risk and understand why it was an undue risk and the potential consequences, then maybe something was missing during your PPL instruction.
Its not about removing the fun out of flying, it's all about managing risk. Loose objects, deliberate 0g, can of coke flying around, dog floating in the cabin. All of those risks could have been managed by common sense and the pilot could have still had fun (and still let his passengers experience 0g)