[@Raddum]
Not exactly wrong per say.  Genetically they might be at least a near-match but intellectually they're probably little more than animals.
Plus when someone is starving and there's no other options but fellow self-aware beings... sometimes it could be a viable choice.
But Mr L ain't no Yoshi so screw that noise.

Canon Papyrus death scene just had me staring.  "You.  What.  One blow.  What.  WHY THE HEAD STILL.  [i]NO![/i]"
As for worst, there's also the rule of funny rather than the rule of drama.