Yup. Know them. Usually these kind of people find out that they maxed out possible attention reservoir, and move on to the new greener pasture. Genuine boredeom of their captive audience is deadly.

In the behavior you described I see 2 things going on. Histrionics AND self-absorbed attention grabbing. They do not need to manifest together. I tend to run on histrionics side. I exagerate quite a lot, use words like "never" and "always". Something that happens or may once a week becomes "daily". Children do that quite a lot. Do you hear how they just "hate" this or that, or something is "best in the world". When I hear myself using these patterns I know it is the child that I have allowed to take control. The child loves drama, but as an adult I knows that being a drama queen does not help communication or relationship. I can thank the child for input and take over a conversation as an adult. It takes a deep breath, and touching my previous committment to not let child ruin communication for me. It ain't easy ... *sigh* (remembering this past weekend... ouch!)

The other behavior is pre-empting other person's story, bringing in myself, when it was not a place and time for me. I believe I have trained myself out of it. For example if someone's dad died suddely, rather than listening to that person's grief, or anger, or just stunned pained silence, I might have launched into a story of how it was when MY dad died, and he was still young, and how hard it was on me. Do I honestly think this person has any room for sympathizing with my long past problems? No, what they need is MY attention on them, my hug, my shoulder. Telling them my story was not a correct expression of my compassion for them. It was easy tendency to drop, because basically I cared, I was just acting stupid.

But I guess you are asking what to do when someone does it to you. Well, first of I would try to get my child out of the driver's seat again (abandonment and anger are the child's reactions), and engage my adult. The adult has enough self-worth that she can tell the person, nicely, "it's a very interesting story you are telling, but you cut me off". And don't whimper it, but speak from a place of self-power. If the rude dude continues, the adult me may just calmly start doing something clearly communicating "I am now ignoring you" or turn to the other person with whom the original conversation was started and start talking abou the weather (be deliberately rude back). That would probably loose you that person, but do you really need friends like this?

I think the best thing to do is to stay in your own dignity and not let them push your buttons.