Kitchen drain plugged. Ran my drain auger from under the sink but didn't fully free the clog. Go to the basement and stand on a ladder with a down-line cleanout above my head. Very carefully ease the cleanout plug open and when no dripping is there, remove the plug. Drain appears very clean and dry so I assume that by the time I got downstairs, the clog got washed down.

Now the mistake to add to my bad analysis. I figure I will use the auger from there to fully clean the drain pipe in each direction. Recall that I mention that the cleanout is above my head and recall that I "assumed" that the clog had released earlier.