The bell rings.
For someone with so much free time he feels like he is always late to things. The school map isn't really that useful, so he asks someone.
"Hi? I am looking for Ms. Smith's class?"
Gosh, it's like the entire point of school.
"I have swimming team tryouts after class," he tells Dayo.
Dayo doesn't follow, seeing as he's not himself going to swim, and goes to the bleachers instead.
The swimming captain is in the locker room when Arthur arrives. "Oh, you came, good."
He doesn't have any technique, but knows the basics, is fast and doesn't tire.
He does. It's clearly a case of someone that learned but never got in competitions.