I’ll just throw this into the mix: the so-called “wisdom of crowds”. I’m not sure if it really applies to juries. But I think the idea that a group of people will be smarter and less biased (or their biases will cancel each other out) is a common notion. It also dilutes the feeling of individual responsibility to some degree.
I like sesame sticks and nuts (but allergies can be an issue). Also wasabi peas.