The last thing he heard the tutor say was "MMMFFF...GUBBBBBELLLL...ZZZZZZUUUHHHH".
The tutor, who he had previously hated, seemed to take on the most wonderful attributes of a certain fantasy bear...
To complete his lesson, Christopher wrote the word vortex in his notepad several hundred times and then scribbled a screed about Piglet being the Antichrist on his forearm.