So basically I was driving home from work, going the same way I usually do. I notice a car in my rear view mirror driving erraticaly. The car was swerving in and our of the left and right lane, seems like a jerk. Anyway, it ends up behind my car and the car in front of me as suddenly brakes, so I do the same. I notice in my rear view mirror that the jerk started waving his hands about and cussing at me (the braking was not even that sharp/sudden). I then gave him the middle finger, as would any driver or person who has the right to communicate.

This is when things get shit.

He then proceeds to speed up and tailgate me (behaviour not that different from minutes before he ended up behind me in my lane) he then tries speeding up in the left lane to get level with me before deciding to go back to tailgating me from the right. I notice his psychotic face as he got closer to my vehicle. Looks like john cena on meth and this is the guy who id just pissed off. So i turn into my estate and I realize that this guy is actually now following me. I notice in my rear view mirror that he can see me staring at him, he signals for me to pull my car over and looks like hes about to blow a fuse. I was considering pulling the car over but then I thought that absolutely no good may come of that. A man who was driving like he was busting for a piss, is now suddently following me at every turn and telling me to pull over. So I continue driving, making damn sure not to give him any idea where I might be living, and lead him to a roundabout near the main road. This is where I began circling while I dialed my phone for the cops. It took about 10 minutes of following, 5 times around the same roundabout and perhaps even him seeing me on the phone before he decided to stop following me.


Now what I am wondering here;

Should I have pulled over?
What could have happened if I pulled over?
Was his reaction warranted from my giving him the finger in response to his unwarranted agressiveness towards everyone including me?
Is it possible he would want to find me again on the road?

I am asking these questions because I have never been in that situation before. If he didnt look like a psychopath I probably would have pulled over, but I am positive this guy was on something.