For people with a gluten allergy, it's kind of like kryptonite, except Superman didn't find a way to mention it in every conversation.

At my funeral play the Super Mario original theme until my casket is lowered in the ground then play the underground music

"It's a bird! It's a plane! It's Superman!" "Nope." "A spider? An aardvark?" "Wrong. It's a horse." "Wow. You can't draw for shit."

If Batman gets to use a piece of Kryptonite against Superman, Superman should get to use a piece of Batman's parents. Fair is fair.