Lambert's understanding of the nuances of emotions is limited at best, but if there is one he understands? It's anger. It could just be that Sans is good at burying his, but despite what he's said about humans before ... if there was hate there, it burned itself out a long time ago. Or many times ago, if what Papyrus said has any truth to it.

"Humans are exhausting." It's a thing Lambert states as matter-of-factly as Sans. Monsters see witchers as humans, humans see witchers as monsters ... and that's always ended in grief in a number of ways. But they're not here to talk about him, or the tragedies of witchers Lambert's never known.

"How'd they even put you under there, anyway? You ever try to get out?"