Papyrus's brother, sans, had moved out of the house a couple months ago. Sans claimed it was for the better of their relationship, and that they could visit every weekend. Papyrus wasn't sure how to take this, but as always, he acted cold and uncaring when sans left. Papyrus lived in an apartment, quite a large one. Since his neighbors were too rude, or more frankly, too scared to let him use the washers made for the building since he was a monster, though he made himself Believe it was cause he was 'TO COOL' and that they were just intimidated of him. So, he often used the laundromat down the road instead.
Today was laundry day, aka Saturday. Since monsters weren't allowed to drive, or use magic, he had to walk there with his laundry. Once he got inside. He saw someone using his washer and dryer, while to be fair, it wasn't his, nor was he assigned to it. He used it every time. He walked up to the human
"EXCUSE ME PATHETIC HUMAN! YOUR USING MY MACHINES!"