That made me smile, I remember those thoughts (and they still pop up from time to time)...my in-house mlc'er seems to be settling down, so I haven't regretted (too much) the spew, nonsense, emotional/verbal abuse that I put up with.
If it helps, I started the assertiveness slowly, small, not very important things as I saw the opportunity to acclimate W to it, then built from there...
It will change eventually, one way or the other, as he progresses through his journey.
In the depths of winter, I finally learned that within me there lay an invincible summer. - Albert Camus
Uncertainty is the very condition which impels people to unfold their powers.-Eric Fromm