Grand jury is so named because traditionally it has greater number of jurors than trial jury, called a petit jury (from the French word petit meaning small).
Although mice tend to come out in the night when most of the occupants of the house are asleep or immobile. This allows them to stealthily infiltrate any of your food bags, crumbs etc. During the day time, mice will normally not come out, but if opportunities exist then they surely can.
What surprised us about this moth is that it is active during the day. We all know how most moths show up at night when we turn on the lights. For us, this fact alone makes this creature enchanting. How I am Different from you, Dear Hummingbird! Unlike you, there are no territory fights.