I spent the whole morning trying to outsmart her, putting barriers in innovative places to try to limit her geographic area. To no avail. She spends all of her time looking for holes which she can squeeze through or enlarge, and she also has learnt how to jump. She jumps out of everything. She even jumps into roofs I put over her enclosures to stop her from jumping ... the thumps of her little head on the cardboard roof makes me feel so guilty, I remove it, but then I am back dealing with a little Houdini rat.
Today I introduced her to the others. She was very, umm, taken by them. Lots of strange mounting and wrestling. Curious.