I believe one of my ex's from a while back is BPD. So if I ran into her, I actually think it would be an "interesting" conversation knowing what I know now about how a BPD operates.
It's funny (maybe not), when I was seeing her, she'd do everything in her power to run the show in our relationship in hopes of turning me into her pet beta male, who would also be a glorified dildo for her. The things that came out of that woman's mouth.... I honestly don't know how she'd take to me at this point. When I would pull an Alpha move on her, she'd get pissed, but later she would treat me better and I feel her attraction for me would be higher (I figured this out later on). But there seemed to always be that middle time frame between her betasizing exercises and my resistance to them. Who's going to break here? CONSTANT testing. The main problem for me was I didn't know that she BPD (or even what BPD was), and I didn't understand what she was doing. So, at times, it made me question myself. Eventually she just wore me down, and fortunately I was aware enough to finally just check myself out of the relationship.
As far as running into a NEW BPD "out in the wild" -Danger, I'm not sure if they'd take to me. From what I understand, they search out betas, or guys who could be potential betas. It's hard for me not to be myself when I'm with chicks, so I don't know if I could pull one in, not saying I'd WANT to, but I don't even know if it's possible now. You'd probably have to throw them some type of Beta bone, so she THINKS: "Oh, he seems manly, but he also seems like someone who's balls I could eventually have in my purse, he's perfect!"
As far as pushing her limits of craziness, I don't think I'd go there, for more reasons than one. I honestly do feel I'm equipped at this point to handle one that comes my way. But still, they're dangerous creatures. Ultimately I feel it's best to leave em be. Don't fvck with a snake, and it shouldn't fvck with you.