I see why we need the psychologist now. My son really has developed a mental block once he told he has to write. Yesterday my son asked for my help with his Romeo & Juliet homework. This mostly involved my playing solitaire in the same room as him, while he ranted to me about Romeo being stupid and a stalker, and how he thought Romeo's purple prose was silly and over the top. That the friar shouldn't have helped him, the nurse was being silly. It was funny and it was clear, that he understood what he was reading, was enjoying it and had good insights.
But when he got to the last question on his homework. It asked him to write a paragraph supporting his position of if the nurse & friar should help Romeo & Juliet. And in a minute he went from being chatty, and mostly productive to shutting totally down. He had already answered this question but something about writing down his opinion had him frozen. I finally had to direct him to other homework, because he had other things to accomplish.