While pulling frames during a hive inspection that I believe has chalk brood, and a queen that's present, but underperforming, I observed three different workers backing into cells. That is, they would put their butts down into an open cell. There IS a queen present, although she is barely laying after introduction two weeks ago and no other signs of laying workers. No multiple eggs in cells, eggs on cell walls, no unusual drone cells in worker comb, etc. I don't spot eggs well on overcast days, and didn't see any in the cells in which this was occurring. I realize from Michael Bush and others, that every hive has laying workers, and that they are "suppressed" or the other workers clean up after them in a healthy hive, but I'm wondering if what I saw is a precursor to something bad about to happen.