Only long haired ponies will understand this one.

Y'know what really grinds my gears?  Frizz days.

Most of the time, my hair brushes out just fine.  I brush for a few minutes, and it's tangle free and the brush goes through smoothly with no resistance and no noise.  But then, occasionally, for reasons that are utterly mystifying and inscrutable. the hair just decides that it won't brush out, no matter f*cking what.  I never change my routine, I always condition, and all variables appear to be the same, including humidity level, but for seemingly no apparent reason, the hair just won't de-tangle, no matter how much I brush it.  It actually seems to re-tangle itself as I brush.  I can brush it until my arms and shoulders are literally so fatigued that I can't keep going, and it doesn't make one bit of difference, and every time I run the brush through, it sounds like tearing velcro.  It's the f*cking worst!! 

And then the next day it will be right back to playing nice like nothing happened, even though everything is exactly the same.  The hell??