Did he just intentionally thinking like a fool since Anya asked about evil organization thing??
I think no. He said "I have to write this down BEFORE I FORGET". The before I forget seems genuine and in a rush. I think he's dimentia is real.
What if Anya's question triggered him to remembering those stuff (ꏿ﹏ꏿ;)
Did he just intentionally thinking like a fool since Anya asked about evil organization thing??