So, you know how sometimes, you get those guys who use, "That's just what my character would do!" as an excuse for whatever they feel like doing? And you know how sometimes you have to add new players into the game at an awkward moment, and you just have to hope that your existing players will gloss over it and be cool?
Sometimes those two things collide in unpleasant ways.
There we were, on a planet of my own creation, one in which a binary-planet system has created such frequent darkness across the planet that the plant life has developed a variety of methods - such as carnivorous tendencies, and bioluminescence to attract things - to deal with it. My brother and sister are both out of college, and wanting to join up for a few sessions, but the other players are already down on the planet. Easy, right? Stumble across them in a clearing, do some introductions, bam. Everything's cool.
Except that it was Mr. Angry who stumbles across them. So he radios to the other two, telling them to hurry over to this clearing, while he takes out his big rifle and watches them. He waits until the other two get there, and then he - without saying anything - fires off a warning shot. Then he tells my siblings to lay down arms. Well, neither of them are particularly accommodating. They look at each other, and then they start running towards him, guns blazing. Mr. Angry isn't too worried, though - he's got a big gun, and there are three of them. They roll for initiative.
Mr. Angry, and my other current players, all roll terribly. My brother and sister roll really, really well. And that was a pretty good omen for how the rest of this encounter would go.
My sister is playing a tiny character, and my brother is playing a huge one. My sister decides that she's going to ride on my brother's back. They charge across the clearing like some sort of weird chicken fight. Both decide to fire at Mr. Angry, since he started it. So I ask my brother, stun, right? And my brother asks, is Mr. Angry using stun?
Mr. Angry was not using stun, because he's a jerk. So my brother said he wouldn't, either. Rolls a great hit. I ask my sister if she's going to use stun. She just looks at me and says "Heck no." Rolls. Misses.
All my current players roll. The other two, thankfully, use stun settings. Mr. Angry does not. He rolls them up. Whiffs.
My brother misses, my sister hits. Mr. Angry is at half health. The other two miss. Mr. Angry flips a destiny point to upgrade his dice pool. It doesn't help him - he still whiffs. He's starting to get kind of mad.
My brother hits. Mr. Angry is at one health. The other two finally peg my brother pretty good, so he's almost at his strain threshold. Mr. Angry fires, misses again. He's really starting to get mad.
My brother and sister both miss. The other two finally bring my brother down. Mr. Angry finally gets a hit on my sister.
My sister rolls a hard agility check to try to dismount gracefully - and nails it. She leaps off of him, hits the ground, rolls, comes up, cuts Mr. Angry down. He rolls for his critical - rolls a 96. He's ticked off. He keeps yelling about how unfair I'm being, though mostly in good fun. The other two, sensibly, decide to tie my brother and sister up until they get a chance to talk to them. They cart Mr. Angry back off to the base, where an NPC gives him a stimpack and wakes him back up.
The other two, who understand that I'm just trying to get my new players to meet the group and join up so that we can get on to more important things, try to talk the other two down. He's not a bad guy, we're looking for this stuff here in the jungle, you guys want to help, it'll be fun, etc. My brother and sister agree, sign up, exchange names, shake hands.
Meanwhile, Mr. Angry has woken up, and decided to march back to the clearing. He arrives just after everyone's made nice (I was hoping that he wouldn't do anything rash if they were all working together). He immediately pulls out his gun, again, points it at my brother, and tells him to drop his weapon. My brother says, "I put a hand on his shoulder, all comforting like... and then I slap him."
Mr. Angry punches him. He manages to do some stun damage, and with my brother recently knocked out, he's still almost at his stun threshold. The punch is enough to knock him out. My sister is about ready to shoot Mr. Angry again, but my brother says, "As my last conscious act - I fall forward, and try to crush him."
Mr. Angry rolls a normal agility check, and fails. My brother falls on top of him and crushes him.
I've had meetings go better.