Running the dishwasher located under the primary counter top did not cause the eggs to topple, nor did unloading it or loading it from the sink adjacent to and contiguous with the counter top on which the eggs were standing. One day when a Fall breeze was blowing through the kitchen, I took some pictures of the breeze lifting a paper towel up into the air, and directly behind the blowing towel was the primary egg standing on end. The active diallel-line servo keep the egg standing with a breeze of sufficient velocity across it to lift up the paper towel. I saw this repeated several times. Force of breeze blowing into kitchen is illustrated by degree of displacement of the screen door curtains 10 feet away.
Breeze blows paper towel upward next to egg which remains stationary.
Sometimes they were tipped over by other objects hitting them. Almost always, I could set them back up quite quickly. I found no significant difference as to whether I sanded smooth the bottom of the eggs or not. Toward the end of the three months, it became increasingly difficult to stand up this particular egg. I found a similar attribute with another egg.