sorry, i dont want to spend too much time quoting every one.
1, have a look at bbc recent documentary "life story" behind the scene clips, you will see quite a lot panasonic gears.
2, for me, i found myself re-verify/challenge my knowledge every time i teach some one. even very basic iso/aperture/shutter speed relationship. plus, i dont clam to be perfect/know-it-all, so there is always something you can learn by sharing....