It's just a day of firsts all around. Or maybe, a dream of firsts. A bad dream. Even if Papyrus is laying the blame on all the wrong aspects of the situation.

"I'm not going anywhere, terrible dreaming human. This is obviously my dream!" He looks around their surroundings again, and points at a distant sentry station. "This is near my house! Or, my old house. I probably made you up! Based on... some rude person on a street?"