Black jujubes, jellybeans, licorice, etc
Like it's not just that they taste terrible, but the taste just stays forever. You could eat a bunch more jellybeans and you'd still taste the black one that you ate 20 jellybeans ago. Without them I could just eat my candy casually, without having to look down and make sure I'm not going to eat something so disgusting.
But noooo, someone just has to create the devil of candies and throw it in there so that I can't be happy.
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