Not sure if this quite counts, because I DID become lucid, just... incorrectly.
But anyways, just the other night, I went to sleep with the mantra, "I am lucid dreaming." I guess this made me be acutely aware of dreams, and aggressively hellbent on becoming lucid during them, or something along those lines, because when I started dreaming, I could kind of sense the dream forming and was aware of the fact that "I'm about to be dreaming."
But, I didn't manage to stay cool and collected enough to just let myself stay vaugely conscious while waiting until I've let myself become immersed in the dream, then becoming lucid...
Oh no. I was way too excited, (Especially because I came SO. CLOSE. To getting my first lucid dream the night before) and instead of thinking, "Ok, so now I can just enter the dream with the knowledge that it's a dream," I was kinda more like, "HOLY CRAY-OP ITSA DREAM GETITGETITGETITGETITTTT" And promptly woke myself up from doing forcing consciousness on myself. I did that 3 times. Once I was lucky enough to just get a FA, but I promptly ruined that as well from doing too aggressive of a reality check (particularly when I practically smacked myself in the face to pinch my nose shut) for no reason in particular. I felt soooooo stupid when I woke up.
I also imagine my first lucid dream starting off with me excitedly shouting, "Yes! I'm conscious!" or something and then a random DC appearing and saying something like, "Wouldn't that mean that you're awake?" And then me waking up. =p