Oh no, this an unfamilar indoors space did someone see him tele-

"What the hell!"

"- hello. Welcome to Milliways."

None of his wards are pinged which eliminates a bunch of the known options. The magic sensitive ink dot he painted on his hand has gone completely black so this guy is definitely something pretty powerful. Tail and wings pull in an obvious direction but the blue skin points otherwise.... and distracting abs which indicates some sort of mental effect so, most likely option...

Lucien pulls a glass vial of holy water out of one of his jacket pockets and hurls it at the possible-incubus.

It splashes on his chest to no effect whatsoever. The vial itself bounces off him and plinks to the floor. ".......what was that about."

"Holy water. Um, do you mind telling me what you are?"

"I'm a demon, but holy water is just water."

"Ah "

.... This feels terribly impolite but he literally just said he was a demon so Lucien is going to ignore his feelings and start uncapping and throwing additional vials, in case quick silver, garlic infused oil, virgin blood, or hydrochloric acid seem to have any effect. 

"Dude, if I wanted to hurt you I'd -"

When he gets to the hydrochloric acid somebody emerges from a side hallway, rushes him too fast to track with the eye, seizes it from his hand and flings it behind the bar where it vanishes, and whisks him into a room down that same hallway where she sticks him in a forcefield-barred cell.

What.

"Um. Hello?"

"No violence in the main bar area," she says, stomping over to the desk at the end of the cell-lined corridor, where she takes up position in a swivel chair next to an obsidian pillar.

"I- um. Okay."

Lucien is trying very hard not to feel guilty! Feeling guilty for throwing things at an unexpected demon is how he ends up dead, which remains very ethically dubious to undo.

"Would you mind me asking where this is exactly."

"You know, if you went up to the bar and waited for a napkin like a normal person, she would've told you."

"I'm....I didn't realize that was an option."

"Also there was a demon."

"Yeah. Lotta people come through here. He's not allowed to do violence either."

That's good to know.

"And you're capable of stopping him if he tries?"

"No, that's why I'm on double shift with that." She aims a thumb at the obsidian pillar. "It doesn't talk though."

Sure, why not.

"Okay. I'm uh, sorry for disrupting the peace in that case."

"Two hours subjective and then you can come out."

"Very reasonable. Thank you."

She picks up a newspaper and ignores him for two hours.

Lucien does not have any reading on him but he has a notebook and pencil and he can do some arithmetic to check if his brain's been tampered with, and when that turns out fine he can useless worry about the situation for the remaining time.

The forcefield disappears after two hours.