Contained on these nearly illegible scrawls is the joke of Spencer going through all the trouble to call the defendant, Murrey Ermer, to the stand, then forgetting what he was going to ask him.  The line as written here is "Uhh, never mind.  I forgot what I was going to say."  Aaron, of course, is an amazing actor, the likes of which the world has never experienced before.  Subsequently, this line was delivered with such conviction and emotion that the audience thought he actually did forget his line but that we just decided to use the take anyway.  Such is the power of genius.