Plot devices are tricky. Some writers use just a handful and ignore the rest. Other writers use everything they can get their hands on to force sense into their story.
Here lies the problem: forcing sense.
Not making it.
An example of this is a plot device you may or may not be familiar with--Deus ex machina.
Definition from the Merriam-Webster's Learner's Dictionary:
[singular] : a character or thing that suddenly enters the story in a novel, play, movie, etc., and solves a problem that had previously seemed impossible to solve.
In terms of writing, I confess. One of my manuscripts has a Deus ex machina moment. *blushes* But now I steer clear of this device, mostly because: a) it confuses/irks readers; b) it just plain irks agents/editors.
BUT this plot device is not just a plot device to me. It's something that happens. In life. Sort of.
You see, I believe in signs. Yes, I just said it. Stop looking at me like that...
Yesterday, a sign presented itself to me. A sign to take a chance. A chance that had n-e-v-e-r appeared to me before yesterday. And, to be honest, it sort of came out of nowhere.
My very own Deus ex machina, waving hello at me. *fist pump*
So there you go. Random moments out of Nowhereville can sometimes work.
Now fess up: have you ever used the Deus ex machina? If so, how do you feel about it now?