The school's track field was vast and well-maintained. A group of students who specialized in Agility and Speed souls were practicing there. They loved to zoom around at high velocities, showing off how fast they could move, often trying to splash mud or kick up dust onto students who were just walking peacefully.
"Watch out! Coming through!" yelled a boy named Flash, grinning widely. He was wearing special light-weight boots that enhanced his speed.
He saw Anthony walking calmly across the field, reading a book. Perfect target.
Flash kicked his speed up to maximum. He zoomed straight toward Anthony at breakneck speed. His plan was simple: swerve away at the very last second, creating a massive gust of wind that would blow Anthony's hair all over his face and maybe even knock the book out of his hands.
He got closer... closer... and BAM!
He hit something solid. It was like running face-first into a steel plate.
Flash bounced off it and flew backwards, landing hard on his backside. Stars spun around his head. His nose was bleeding, and his teeth felt loose.
"What the hell?!" Flash scrambled up, rubbing his throbbing head. He looked at the space in front of Anthony. "There's a wall here! Who put a wall here?! Is this a joke?!"
There was nothing there. Just empty air. The grass was flat, the sky was clear. No bricks, no concrete, no magic barrier visible to the naked eye.
"No wall," Anthony said calmly, not even looking up from his book. He just stepped over the spot where Flash had crashed. "Just a localized spatial distortion. You walked into a pocket of compressed reality. It's a lot like walking into a glass door. You should really watch where you're going, especially when you're moving that fast. Accidents happen."
"I didn't see anything!" Flash complained, panicking. "It was invisible! It's not fair!"
"Exactly," Anthony nodded sagely. "That's why they call it invisible. If you could see it, it wouldn't be a surprise, would it? Try to be more observant next time."
For the rest of the day, every time someone tried to run fast past Anthony, they would hit an invisible barrier. It didn't matter which direction they came from—left, right, above, below. It was like Anthony had his own personal atmosphere that rejected bad vibes and speedsters.
Eventually, the runners gave up. They started walking around Anthony in a wide, ten-meter arc, muttering curses and rubbing their bruises. They didn't understand it, but they knew better than to test physics when Anthony was around.