I’ve been reading a bunch of these and all I can think about now is aliens finding out about our insane ability to walk away from accidents.
“Human Colony SDO435**, this is Gxanimi survey vessel 3489. We regret that we must inform you that the wreckage of your ship ‘Gecko Flyer’ has just been detected on planet F56=K=. We offer expressions of sympathy for this catastrophe.”
“Shit, thanks for telling us, we’ll be right there.”
“To find our people, of course.”
“… you wish to retrieve the corpses for your traditional death rituals, of course, we understand. We have sent the coordinates.”
“What do you mean, bodies? No survivors at all? There must be some.”
“Official mouthpiece of Human Colony SDO435**, the ship has crashed. It has impacted the planet’s surface at speed. Moreover, this might have happened as much as five vek ago. We do not understand why you speak of ‘survivors’.”
“Oh, there’ll be survivors. There always are.”
“(closes hyperspace voicelink) How sad that they are unable to accept the reality of their loss.”
“Hey, Gxanimi survey vessel 3489, thanks for letting us know about the Gecko Flyer. More than half the crew made it!”
“They survived! A couple of lost limbs and so on, but they’ll be fine.”
“… but that vessel was destroyed! Images have been examined!”
“Oh, well, everyone in the fore-below compartment was crushed, obviously, but the others made it out.”
“… but the crash was vek ago! Excuse we… at least eighty of your ‘days’! How could they survive without a ship? Without shelter and supplies?”
“Well, the wreckage gave them some shelter, and of course the emergency supplies kept them going until they could start growing stuff. It’s actually a nice little planet, they said. Quite a lot of edible flora and fauna. T-shirt weather, in summer, too.”
“What is… t-shirt weather?”
“Oh, you know, when it’s comfortable to go around with only modesty covering over the epidermis. Exposed limbs.”
“That planet is so cold that even water solidifies in its atmosphere!”
“Well, in winter, obviously. But we like that. Listen, our people have been raising crops down there, and that’s usually how we rule a planet as ‘colonized’…. is anyone else using it, or can we call it?”
“Er… we have claimed the warmer planets in the system, but we believe we could come to some arrangement.”
It was really nice, the humans thought, how carefully most of the aliens kept an eye out for downed ships after that, once they found out that humans tended to survive anything less than explosive decompression or… well, explosions generally. They’d immediately inform the nearest outpost of a wreck’s location, or even ship survivors back themselves. It was very thoughtful.
They didn’t find out until a long time later that the Gxanimi had put out the word to every species they were in contact with. It was vital that everyone knew the things they had learned about humans after that first encounter.
1. Humans can literally walk away from an impact that renders a space-worthy hull so much scrap and would have actually liquefied a Gxanimi.
2. Humans will eat just about anything not immediately fatal to them - including, in extremis, the corpses of their dead crewmates. In fact, most human vessels keep a list of those willing to be eaten and those whose socio-religious scruples forbid it. They have a ridiculously high tolerance for dangerous substances, and if they can breathe on a planet they can probably eat something on it too. They also have something they call the ‘Watney Protocol’, which requires them to carry live soil samples, seeds, and simple tools that will allow them to start farming their own native foodstuffs on any remotely habitable planet immediately in the event of an accident.
3. Once they’ve farmed a planet, they bond with it. They’ll be polite, but it’ll take significant effort to get rid of them even so.
Conclusion: If a human ship crashes on a planet you like and want to keep, get other humans to come and get them immediately. Remove them yourself if you have to. Even the worst crash can result in a thriving colony in a few vek.
And don’t, for the love of gravitational regularity, try to solve that problem by killing off the survivors. Just don’t. It won’t work and it just makes all the rest of them mad.