I did get a giggle out of this, but I cannot figure out CTFFF even after two cups of coffee.
And, y’know, in real life I am a she who laughs a lot and doesn’t object to a good wide-ranging, digressive conversation. 
@cdaquila I’ll give you some hints, as to what CTFFF stands for
In order . . .
Check
The
You have occasionally given me grief about my colourful language, in particular that it was quite transparent
I seem to recall mentioning a blown fuse
What comes before second?
I can’t spell it out, because you might eject me from the website . . . !
OK I’ll tell
Many electrical issues can be caused by an open (or blown) fuse. So when a component or system isn’t working, you should CHECK THE F*@%&ING FUSES FIRST.
Oh, it was the “first” I couldn’t get. The rest came through loud and clear. Thanks.
All of the mechanics I know have made this very basic mistake, of not checking for a blown fuse first
Me, included
Sometimes, they spent hours trying to discover why component x isn’t getting power
That said, not all of them admit that they’ve ever made such a basic mistake 
Even though their colleagues observed the whole episode, from start to finish