It's interesting to me how the physics bugs such as characters and object getting stuck inside walls, flying cars, failed inverse kinematics and so on have been the usual bugs for so many years now, but there isn't yet a methodology to prevent gamedevs from falling in those old known pitholes. These are very difficult to detect by QA and the way to fix them is tweaking some parameters and geometry here and there. There should be a way to supervise the physics engine, find whether future calculations will cause an invalid state on some object and choose a transformation that won't produce such conflict.