"If everyone just told the truth..."

I was riding the bus this morning, chatting about history and law and so forth, and the girl I was talking to observed, "You know, if everyone would just tell the truth, we wouldn't need lawyers." (This was before she knew my chosen profession, so I'm pretty sure it wasn't spite. The girl honestly believes this.) I tried to think of a situation where complete honesty on all sides would eliminate the need for lawyers. I came up with a lot of reasons why complete honesty on all sides is really unrealistic...but everything I see, I still see lawyers in the thick of it.

(You'll probably want to click on it to see the big version. Also, I can't draw people. At least not quickly.)