Is it my imagination?

[tuxluvr]

....or are these mice arrangements supposed to mean something. Every night, when we go to bed, the foyer and stairs are clear. The little fur mice are...somewhere.

This morning, on my way to the bathroom, I notice an "arrangement" at the top of the stairs. One mouse, next to a long string stretched straight up the stairs.

This has become regular behavior. Yesterday morning, it was two mice, one in our bedroom doorway, one at the top of the stairs, with the string curled up between them.

Pardon my anthropomorphic musings, but I wonder if I should be looking at these as kind of my morning "tea leaves"....mouse on the stairs, rain....mouse with long string....long day, stay away from the boss...