Well, the last nightmare I had in my life was when I was about 11 or 12. We had a cat. In the dream, and I did something to irritate the cat, and it assumed its true shape - that of an alien with crystal electric fur. It chased me around the yard, yowling and sparking, until I jumped up on the gas (for cooking) tank outside and woke up. Yes, I was heavily into The Outer Limits at the time, and yes, there was a cat yowling after I woke up. Maybe later I'll tell you about the earlier one with a dinosaur in my front yard...

Like I said, I don't have nightmares. I have dreams that bore me until I wake up.