For example, actual negotiation is just pedantic and not worth the time. Some lovely real examples:
Me:
"Hi, I would like to trade my somewhat rare luxury resource for another, even more readily available resource which you have that I do not! This is in your interest since I notice your city actually wants this resource!"
Comp:
"What! WHAT!? How dare you! You need to at least throw in 800 gold, your second best city, and every single one of your strategic and luxury resources - only then will this trade work!"
What's even better is:
Me:
"Well, you done fucked up trying to show how big of a man you are, walking your troops into my city and attacking. Too bad I just razed 4 of your cities, and am going to raze another."
Comp:
"Stop! We should be at peace!"
Me:
"What are the terms?"
Comp:
"Well, we will have a peace treaty that will last ten turns; in addition to the treaty, I require you to give us all your strategic and luxury resources, plus some gold, for 25 straight rounds. Anything other than this is less than fair!"
Me:
"Treaty DENIED."
I do find it hilarious when said enemy offered me every one of their garbage cities. Literally they (Siam) threw 8 cities on the table today in an effort to curb me from wiping them out of the game. Nothing like trying to destroy the happiness of one's civilization with a bunch of useless unhappy trash cities. Joke was on them though, because I was easily able to bring each one up to a happy level within 5 turns while my cities happiness plunged from 45 to 40. After those ten it was back to around 45/47. Plus I started getting lots of gold, silver, dye, fur, etc.
But that does bring me to another point, I hate that the AI straight up litters the map with these totally useless fucking cities. Such a damn eyesore. Then they get ballsy and threaten you with a "stop building shit next to us or you'll regret it", when it was the computer who built that shitless/worthless city next to your sprawling metropolis.
I love the fact that you can't stack units now though, that shit is pure class.