Working in a monster-owned business sure was something. While Hisha's brother mostly remained in the kitchen to prepare non-magic food (Grillby had decided to stop selling it under the name "human food" after too many customers jokingly asked if it was made with real humans), she herself was required to do other tasks more. Which often meant that she got to see the customers, monsters and humans alike.
By now she was accustomed to sights that not so long ago she would never have expected to actually see, like people made entirely of fire, dogs going around with their own guide dog on a leash, skeletons absorbing ketchup through their teeth (at least she assumed that's how he did it ; she never dared to ask) or monsters with no mouth or face at all eat (presumably using a similar technique).
Though, at this hour no customer was currently in sight (which was quite rare), so she took this opportunity to clean up a few tables while humming to herself. As the room stayed empty, she soon let herself sing for real :
"Welcome to the abandoned land
Come on in child, take my hand
Here there's no work or play, only one bill to pay
There's just five words to say as you go down, down, down…"
"do ya have some ketchup?"
Hisha nearly jumped through the roof from the surprise.
"The fuck did you come from?!" she asked a very amused Sans once she realised what had happened.
"my house."
"…Anyway… Don't sneak up on me like that, please."
The skeleton casually sat in his usual seat at the bar while the human did a quick trip to the kitchen to get him a bottle of magic ketchup (Grillby had decided to stop using the phrase "monster food" in his menu for similar reasons he had also stopped writing "human food" in there).
"You're early", Hisha pointed out after Sans thanked her for the ketchup.
"papyrus found this while cleaning", he explained as he took his cellphone from his pocket and pulled a hair tie from the dimensional box. "is it yours?"
"It is!" the human replied as she took her hair tie back. "Thanks. I thought I had lost this one for good."
She put it in her pocket, hesitated a few seconds then finally asked :
"How do monsters do that thing? I mean, I often see you guys pull stuff from your phones or store things and… How does that even work?"
"'better ask alphys. she's the one who ported the old box system to cellphones. she doubled it, too."
"Oh? So it's not some magic trick all monsters learn?"
Sans shook his head no then emptied the ketchup bottle in one go, as you do. Well, mostly as he does.
"well, 'guess there is some magic here, but you don't have to use any for it to work. frisk uses the boxes too."
"Can I use them too?" Hisha asked.
"sure. I'll ask alphys to upgrade your phone."
"Oh, thanks! I'll never have to worry about small pockets again!"
"no problem. anyway, gotta go to work. put the ketchup on my tab."
"Hey, you guys helped us a lot after our apartment burnt down so…it's on the house. I'm sure the boss won't mind."
"thanks", Sans said as he stood up from his seat. "i'll ketchup with ya later."
Hisha turned around for barely a second to throw the empty bottle away ; when she turned again the skeleton was already gone. Damn teleporting skeletons, can't they just use doors like normal people?
Oh, who was she kidding, if she could teleport she'd probably act the same.
[No Sans that's not how the song goes! (Some of you probably recognised Burn In Hell by Twisted Sister)]