I took a summer class that I enjoyed very much, but all things must come to an end, and that meant exam time with a take-home exam. I labored over it only to find out that I wrote several pages on the wrong German unification; I wrote about the original 1871 unification under Bismarck, and not the (re)unification following the fall of the Berlin Wall and Communism in East Germany.
I wasn't feeling particularly motivated after that. Let's not lie: I wasn't feeling very motivated to start with! I finally got the darn thing written.
Moo tried to help but unfortunately his efforts were not exceedingly useful.