Bleh, half the stuff was non-contextual. I mean, seriously, that reading diary entry was TERRIBLE! I DOUBT a native Japanese speaker would say: "Wasabi! Takusan! Karai!" even when overdosed with wasabi. Like, seriously, that sounds like what someone who has undertaken 2 weeks of Japanese would say.
I doubt that a native japanese person would be unaware of the wasabi in the sushi -.-; I almost thought that it was an Australian person doing exchange in Japan when I skimmed it.