After a lucid dream I had I told my uncle about it while unknowingly in another dream. I was in a park underneath a weeping willow with my sister and uncle, when I told them about the above experience. I then proposed, "hey maybe I'm dreaming right now," positive that I was awake and I decided to close my eyes for a few seconds, because in my dreams that tends to wake me up. I opened my eyes and said, "see? not dreaming."

I think the pseudo-reality-check [would have just woken me up] didn't work because I didn't believe it would. I think reality checks are mostly useless without prior suspicion.

I wish I would have counted my fingers though, because that, who knows, might have worked, and if it had, that would have been a very vivid lucid dream in a nice park on a sunny day with friendly company... !