I had a lucid dream once.
My mind, however, decided to take the opportunity to make me dream about spiders and webs and mutation. Naturally, I was horrified. Now, I see much scarier things, but I was about eight at the time. It was terrifying, really. I mean, back at that age, if I so much as saw a spider, I would freak the stuff out. Those eyes, and the loving mouth and the legs.
Oh god the legs