It's interesting that saying "without prejudice" is a keyword for "I'll sue you later if it's worth my while". It seems like lawyers get a lot of power purely from that fact that our legal system makes no sense and they can just warp it against you at any time.
The legal System does make Sense, it's just too complex to be completely consistent.
Good lawyers are basically hackers of the legal System who work with (or around) These inconsistencies. Some use this power for good, others for bad ends.
