Hey Sans has a monster ever pleaded with you not to kill it?

“pretty much every time. no one down here that’s lived this long is ready to die, not after everything we’ve gone through.”

He shrugged one shoulder.

“it’s between me and them, though, kid. they’d have no mercy for me. thankfully… it stopped bothering me a long time ago. lv and all, you know? killing doesn’t hurt when you can’t feel anything at all.”