Misaka had not acted shiftily at all.

[this time, at least. or at least that's how she sees it. moving on~]

Anyway, some of the food went rotten the moment people tried to eat it.

Tell Misaka, did your babysitter at least help you pass the time with games? [for most of this segment in the conversation she's had a neutral expression, but as she asks her question, an amused smirk spreads across her face.]