I agree that it will be difficult to WILD upon retiring, as you are probably far from a period of REM sleep at that time.

Sounds like you are good at stabilizing lucid dreams! That is excellent.

As for the other, I'm not sure I am understanding--are you saying that if you recognize something in a dream that would be impossible in waking life, you would expect that to end the dream?

I would not necessarily expect that. I would think that if you are lucid, you would be able to think, "Here I am in my dream and I see that man now has two heads, whereas he had three a moment ago." Being lucid should make it easier for you to accept what pops up in your dream, whether or not you try to do something to change it, but again, I'm not sure if I understood your thoughts.