He gets back to work with less frustrating people.

She grabs the demons with outstanding warrants and explains the system to them!

Explosions demon protests that his summoner wouldn't let him go home. Hostages demon thinks Varda maybe does not understand the vital importance of the Pegasus Cycle books and anyway the hostage went to Heaven.

These defenses can be presented at trial! But she will endeavor to explain to the hostages demon that being murdered is terrible even if you continue existing, because you miss out on things like watching your children and grandchildren grow up, and you have loved ones you never get to see again, and your family thinks you're gone forever and grieves, would the demon like to know what the emotion of intense grief is like, Varda found it useful when someone helped her with that.

The demon declines. Would Varda like to know what the first two Pegasus Cycle books are like.

Yes!

The demon hands them to her.

Explosions demon thinks it's unfair to have a trial for the explosions and not have a trial for keeping a demon who just wanted to go home.

She agrees! She can look into whether that person has been put on trial.

Person is in Fairyland. Explosion, you see.

Well, then it sounds like they definitely experienced the consequences of their actions. 

If going to a daeva realm is enough consequence for actions then the explosions demon did too.

Dying, and thereby losing contact with all your loved ones forever, is traumatic, she just tried explaining this to the other demon, does this one want to know what it feels like.

Being stuck on a space station is very like that what with the no contact with loved ones! Ahem!

Being stuck on a space station is not forever. How long had he been stuck?

A week and the summoner was not budging at all!

Was there any way to kill just the summoner and not all of the innocent people on the spaceship?

No, he had to do fancy physics things to get an explosion within the binding.

Those sound like mitigating circumstances and she expects they will be taken into account. 

Well, the demon doesn't want to count on that.

Well, the alternative is agreeing to a binding to not take summons any more.

The demon does not want to count on that being the thing she says it is.

The demon can stay here and think about it as long as he likes. He can even make things, if he wants. 

He hasn't even taken a summon in twenty years, that was the only one, he decided it was a bad idea when his summoner trapped him, she's confusing and scary and he wants to go home.

It doesn't sound like agreeing not to take summons again will be a problem.

He will happily agree not to take a summons he doesn't want to take any summonses that includes this one she's trying to get him to take!