My idea is for a new creatu, something feral, that you stumble upon while exploring its planet. Sometimes the creatu is hungry and cold and lonely and wants to come home with you. Sometimes you have to convince it....maybe with a food item, maybe a toy. Sometimes the creatu is sick, and healing/medicinal items can be used to heal it, but it is 50/50 whether or not it will come home with you. And sometimes it refuses completely, but maybe leaves you a nifty item that can only be obtained that way.
This could be taking it a bit far, but I think it would be super neat for the creatu to refuse to leave your side (will only go into showroom) as it is a feral animal, it only trusts you for X amount of time (random?). After that time, it will let you know that it is ready to get to know other humans. Also maybe not beanable, to keep the value up.