"I probably suffered from ADHD, but they weren't so quick to diagnose it back then. For PE, they'd drop you in the woods with a compass and a pack of matches. It gave you confidence that you could rely on yourself."

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Most helmsmen would’ve been satisfied with a pilot’s wheel or a tiller. Leo had also installed a keyboard, monitor, aviation controls from a Learjet, a dubstep soundboard, and motion-control sensors from a Nintendo Wii. He could turn the ship by pulling on the throttle, fire weapons by sampling an album, or raise sails by shaking his Wii controllers really fast. Even by demigod standards, Leo was seriously ADHD.

— Rick Riordan