While I am not what I would call a lucid dreamer, I have had them in the past and am slowly learning to recognize them. I don't use any sort of triggers, I just suddenly realized "Hey, I'm dreaming." This was followed by "Am I on any altering substances?" I couldn't remember anything I took, so I concluded I was dreaming. The following lucid dream was primarily the result of this story. (BEWARE, not for those that can't stomach dismembered limbs in photos).

I was with mooflyfoof and she had a dog, a lab or golden retriever sized one. She's a cat person, so I'm not sure why she had a dog. However this dog was gnawing on his arm incessantly, supposedly after a flea or something. Mooflyfoof and I continued chatting, and then looked over to find that the dog had gnawed clear through his leg, and his paw and part of his shin where laying on the floor next to him. Suprisingly the dog was calm, not suprisingly me and mooflyfoof were not. She started freaking out and I ran and was suddenly in a grocery store or pet store, looking for something to fix the situation. It suddenly occurred to me that a) this was a strange occurrence and b) mooflyfoof doesn't have a dog. *cue lightbulb* I must be dreaming! A quick substance check, no recollection of any mind-altering prescribed medications and I concluded that yes, I was in fact dreaming. This meant I was in control of everything. This meant I could fix the dog's leg like nothing ever happened. I closed my eyes, did a little head-nod Barbara Eden style, and then leisurely walked back to the room that mooflyfoof was in with the dog. It was like nothing had ever happened and the world was right. But that damn dog was chewing on his leg again.