What I hate about it is that I listen to that and hear not so much actual brazen idiocy, as yet another example of flaws in an obviously defective process being exploited to deflect accountability. The meta for depositions at this point is such that the ideal witness is a lot like someone who has just experienced severe head trauma. They can sound insane, idiotic, clueless, lazy, forgetful, obtuse, anything in the world except liable.
Its almost like the worst people among us have discovered that in high-trust societies if you have no morals you can engage in any behavior you wish.