Anyone else turn their dreams into nightmares for fun?

Hello all, I'm new at posting here but reading the forums has been a great help. My dream recall is better than it's ever been and the other night I had a sweet lucid dream!

I was in a supermarket with someone and I guess we were in there for a while doing something boring and I say "I've had enough of this, let's go do some more flying" (I had been doing a lot of flying in previous dreams the same night). Then I saw Sarah Silverman talking to a clerk and I go up to her and say "hey you're Sarah Silverman and I'm dreaming." Then I start floating around and flying through the supermarket above all the aisles. My vision expanded like I was looking through a wide angle lens and everything became so much more clear and colorful. I look at my hand and my fingers are clawlike and my hand seems kind of swimmy and unstable. Then I see Kathy Griffin (what's the deal with seeing mediocre female comedians?) and say "hey Kathe Griffin I'm in a dream and so are you" and she gives me this blank look. Then as I'm flying around looking at all the customers walking around below I say to myself "ok now I want everyone who I see to have a really scary face." Then the faces of everyone I see becomes deformed and corpse-like and horrifying and it scares me but it's also kind of thrilling and fun like a roller-coaster. Then I think "I don't want to see anything that's so scary it makes me scream in bed." And with that everything starts getting dark and blurry. I'm still floating in the air and I think about trying to spin around or rub my hands but the dream disappears and I can hear myself breathing in bed and then I'm fully awake.

Does anyone else like to make their dreams turn into nightmares when they become lucid just for the fun of it or is that weird? Also, any ideas on how I can become lucid more often? Every time it's happened for me it wasn't because of a reality check or noticing a dream-sign, it was more out of the blue. Like in this one I just described I had a weird sense of logic: I was thinking about how I wanted to go do more flying, and that sort of gave me a hint I could be dreaming, then I saw Sarah Silverman and I thought that she was dreaming and I'm in her dream, then I went up and talked to her and realized I was the one who was dreaming. Is this what a dream-induced-lucid-dream is when your dream makes you realize you're dreaming for no particular reason?