last jujitsu class was three and a half months ago

connects to wanting to know everything

He told me, "A jujitsu student becomes a jujitsu master by destroying his master's privates." I told him, "That's fascinating." My last jujitsu class was three and a half months ago. (2)

I feel that Jonathon Safren Foer put this in the book to help add to Oskar's claim about being a pacifist.