In one of my projects I am dealing with someone who when he wants something always seems to do one of two things: intimidate or manipulate.
... .His communications skills are quite poorly developed and he wasn't able to handle SET and DEARMAN at all. He basically was used to always getting what he wanted and also getting away with everything and was totally unprepared to now be dealing with someone who didn't allow his behavior to continue.
Isn't this an interesting discovery? In the past I used to look at these kinds of people as the 'big bad wolf' so to speak; someone, who may be too strong to take on, and it's been surprising to find out that they are actually weak and insecure and THAT is what drives their forceful behaviors... .
And I have to be honest here - those are the kinds of behaviors I had observed in my FOO and didn't know what is healthy. So, in some instances (family and intimate r/s) I used to employ those same behaviors myself (to my shame) but at work, or in public, where I would consider that embarrassing, I was helpless, because I wouldn't use the unhealthy behaviors and didn't know what the healthy ones looked like.
So I would definitely call this a success. Not only with this particular person but the big success was realizing how valuable all the skills are that I have learned here and that I can also successfully apply them to people who don't have a PD but do behave very unpleasantly.
I couldn't agree more.
It's sad that upon reaching middle age I finally feel like I've "grown up." It's never too late to start working at ones' self.

I feel like we are in the same boat, and yes - better late than never! I am still learning and I think I will continue to learn for the rest of my life, but it's starting to feel like I have reached a comfortable zone... .
You know, being more assertive in advocating for your kids probably is another (deeper) layer of what you have been doing in your profession. It is easier to assert yourself when it comes to expertise and job-related, than it being personal. And I think that also dealing with your children's mom must have grown you up a lot too.
At least for me that has been the case in my personal/family growth and work too - being 'da boss' over the last 3 years has gently forced me to take charge in the practical matters and to be assertive in training and correcting people's work and who's going to do what, how etc.
However, I remember times when different co-workers would subtly play power-games and I felt helpless in face of that and feared mutiny... .I am experiencing this as a series of steps up - and I am grateful that opportunities to improve and practice new skills for me come at a gradual pace.
There was a time when I had a dysregulated new employee (insubordinate and disrespectful) on my hands couple of years ago and was grateful for the book on boundaries I had just read. That was a first for me, and I was surprised how staying calmly in charge versus getting unnerved, defensive, or getting pulled into an argument made all the difference. Another block of confidence to build on... .
The second confrontation ended very quickly with the person offering a sincere apology! Now THAT was not what I expected.
I think it goes to show that it is easy to expect it to end badly, end badly quickly and result in some kind of punishment/backlash, but it could just end well.
I hear you - our FOO expectations do get in our way don't they? That is one of my fears that I have to push through
every time still!
I get ready for the backlash, brace myself breathe and do what needs to be done. More often than not, the backlash is smaller than I expect, or entirely non-existent.
And with more and more positive responses (or successfully working through the negative ones), it gets teensy bit easier the next time. Or possible to take on some new area.
And as my regard for myself rises (because that took GUTS, my friend!) my over-regard for THEIR comfort lessens. they weren't worried about how I would respond - they trusted it was okay to bring their (whatever) to me - how come I don't get to do the same? Well I DO! And I did!
Very soul building.
That's the blessing of people growing up in healthy families - they are taught that it's everyone's responsibility to take care of their own feelings. They also get taught what are the acceptable, and kind ways to act toward others so as not to cause damage. We get to play detective and learn later on, but I am still grateful for the discoveries... .