Still hot and humid in Honbu Dojo. More kenjutsu, more iai, more kusarigama. I think got heat stroke or something; I was dead tired and no matter how much water I drank I was still thirsty. Cracked my thumb nicely doing some stiff-grip techniques that should have been way more fluid, so my right thumb is all blue and purple and swollen now. But no time to complain as I had to go to Iidabashi to teach. Only two showed up (that's why we're shutting down Iidabashi this month) so I got to practice, too, but I was too tired to be useful.