Further to the question of the oven and oven racks: it turns out to be relatively difficult to photograph what I'm talking about, but I'll do my best to describe it with words and pictures.
The oven racks themselves are anchored to the oven wall ridges that define the slots with a fore-and-aft arrangement. The back hook, if you will, (at the right of this photo) sits under the ridge. There's a stopper along the bottom of the ridge to prevent the rack from being pulled all the way out by accident. Closer to the front of the rack (at the left of the photo) is a loop that also sits under the ridge to stabilize the rack.
The way you move a rack from one slot to another is, first pull the rack out enough that the loop at the left will clear the ridge. Then slide the rack all the way to the back, where there's a gap between the ridge and the back wall to let you lift that back hook. Reverse the process to install the rack in another slot.
This is how a properly installed rack looks:
However, the very top slot has a light bulb and a thermocouple interfering at the back wall. If you push the rack all the way back and try to lift the back end, as for every other rack position, you bang into the light bulb at one side and the thermocouple at the other. This is what confused me yesterday and required that I pull out a flashlight and look carefully inside. That top set of rack ridges has the gap for the back hook farther forward.
It works fine, now that I know the arrangement, but it confused the heck out of me yesterday, in the heat of battle so to speak, until I grabbed the flashlight and looked. Fortunately I hadn't started the oven yet!
In other culinary news: I had the usual morning walk, gleeful in having found some open space within easy walking distance,
then had my usual breakfast of yogurt, fruit and nuts. Nothing new about that, and I didn't bother to photograph it. Then we were gone most of the day, for social engagements in the late morning and much of the afternoon. Between engagements I had my first (no kidding) fast-food-joint burger since my darling died.
It was actually pretty good, though I still marvel at the way prices have shot up. This was $11, about what it would have been last year, but I'm still mentally back in the $4 or $5 burger era. I shared most of the meat patty with my canine buddy. I liked the flavor very much, but didn't really want all that food. Now, at 7 pm, I'm still not hungry. It'll be a big dinner salad. Maybe I'll post a photo, maybe not.
If the oven rack issue isn't clear enough, ask away!