I knew I'd seen this somewhere but I couldn't find it. Many of us can relate to this I would have thought:

"When it comes to the explanatory notes we must make sure that they are readily comprehensible. We must assume the most stupid circuit judge in the country and before him are the two most stupid advocates. All three of them must be able to understand what we are saying."

Sir Michael Ogden QC on his explanatory notes to the First Edition of the Ogden tables. From his memoirs: Variety is the Spice of Legal Life (Lewes: The Book Guild 2002).