Looks like the Fitzgibbons boy caught her and made her into his pet mouse; and she is not happy about it! She also lost her clothes after being caught, and had to make new ones out of some rags she found in her cage.
Maybe she only wears them when no one's around, or when her captor is too busy with something else to notice; she might be giving them that look while they're sleeping.
Again, the clothing was part of the details. Maybe she only wears them when no one's around, or whe
In breeding housemice as pets, the Japanese had to select the least psychotic specimens (tractable, tho I found black mice to the feistiest, nippy and truculent.). House mice also have no incest taboo instinct and can be inbred indefinitely, enabling colonization , over much of the world.
Woodmice (in a different subfamily or family) have an incest taboo, and can not be inbred into self-sustaining isolated colonies. The closer related or the longer living together before maturity, the less likely they'd breed. One group, brother-sister pairs and raised together from birth, produced only ONE 2-mouse litter in all the time the experiment went on.
In breeding housemice as pets, the Japanese had to select the least psychotic specimens (tractable,