Okay. Basic question: is there a way to induce, or drastically increase the chances of having, nightmares, the ordinary non-lucid kind?

The reason I ask, is that my favourite dreams have happened to be nightmares, or nightmares that have "backfired" and in which I have just ended up laughing the whole way through at the absurdity of it all, even though I never ACTUALLY gain lucidity. And so, and I know it sounds crazy, but I'd like to actually have more nightmares...

So... can anyone give me any tips? What makes nightmares more likely? Can you induce them?