When I was little(r, as I'm only 15 anyway) I had a few lucid dreams, maybe 5 total, but would always wake up right after becoming lucid. But there was this thing that would happen a lot, I mean for several years, that I would attain lucidity but be excited enough to "remove myself" from the dream. What happened was I would see this cartoonish green witch with a cauldron and black gown and she would be counting down in this old fragile voice from 10 to 1. If she got down to zero I would start the dream I was in the middle of, right where I left off, like nothing happened. But, most of the time, I would force myself to wake up when she was counting down. I would basically rip my eyes open. Typically it happened during nightmares which is why I would abort the dream and wake up, but one time I specifically remember seeing a big Egyptian-style museum with several big elephants walking around in an aquarium (wtf, I know). That dream wasn't a nightmare so I just stuck around to see what happened to the rest of the dream. I think I woke up pretty soon afterward.