Fun canon fact: if you leave futaba and yusuke alone they will start fighting, but if you leave them with Goro, they will join forces to roast Goro instead.
Also if you give the three of them food, they will forget what they were doing and get along.
yusuke: [walking around still disappointed 6 hours after visiting an aquarium]
akira: what did you think a tiger shark was, yusuke?
Haru: Roses are red, violets are blue… sunflowers are yellow… tulips come in all kinds of colors… daffodils are also yellow.
Yusuke: Was that supposed to be a poem?
Haru: No, I just like flowers.
[screaming externally] 