I'm far from "the victim type", but this scary incident is one that I'm still disgusted about, so I'm more than happy to share it:
I had a perfectly nice life, beautiful kids, and everything was wonderful except that my husband and I did have quite a bit of stress. Also, he had a medical condition that meant the stress affected him in ways it didn't affect me. In any case, we had a lot of misunderstanding going on in the months leading up to when it became clear that my only choice was to take the children and leave. It wasn't a great situation (needless to say), but I assumed it could all be worked out. Wrong. He panicked, thought I was "nuts" for leaving, and got my relatives worried about me. The first thing I knew, an ambulance showed up to get me and take me to the "mental health place". That wasn't what my husband thought would happen when he called to ask what he could do, and it wasn't what my relatives wanted; so I hid and the ambulance was sent away. That, in itself, was a horrifying, horrifying, experience; because all I could think of was being doped up in the back of the ambulance, and maybe doped up for who-knows-how-long.
The scariest thing I ever did was to later go willingly with the police who had shown up (a few cars, two police per car) after the ambulance had been sent away. The police were calm and told me if I went with them to the "mental health place" I could get what I wanted from the court (a separation, etc.). I knew I had to stay calm in front of my three crying children and elderly mother. I also knew I had to stay calm at the "mental health place" (because I feared that if I showed too much anger, lack of cooperation, or other emotion I might end up being drugged). So, I had to stay calm and cool for the few hours I was there (although I suspect the people I dealt with sensed that I was so disgusted with it all I was actually very cold toward them when they didn't just say, "Oops. Sorry. We made a mistake.") I may not sound very scary, but it was the scariest thing I ever did/went through in my life. I had built my whole sense of security and confidence on the fact that I'd always been so "solid" and "fine" and the kind of person others came to for support and sureness. My very core was being questioned, and I had nobody to stand up for me.
As for why I did it: I wasn't about to resist a couple of policeman, and my kids needed me to be calm and reassuring.