Loki looked upon Laufey’s cheekbones and honestly had no idea he was his son SMH. That “it all makes sense now!” line when Loki confronts Odin includes the dawning realization that he shares deadly sharp cheekbones with his Jotun dad, whilst Odin’s cheekbones are about as dangerous as a Dodge ball. Like??? Sure??? It would probably hurt if he head butt you, but it would only result in minor abrasions. If it were Laufey or Loki? Say goodbye to your whole face because they’d cleave it off if they so much as rub their frosty jagged face on you that’s how dangerous them bones are.
Loki is the Philosopher King 