At seven

I was invited to go to a swimming pool with a friend and her family. I remember being really excited about getting to play in a real pool. Per the admittance requirements, we all rinsed off in the locker room and waited in line. One by one, we stuck our arms out so that a park district employee could rub his or her fingers on our forearm to ensure our cleanliness. The whole thing sounds crazy now. But those were part of the rules, I guess.

Go Away With … Kevin Olusola of Pentatonix

The son of a Nigerian psychiatrist and a Grenadian nurse, Kevin Olusola enrolled at Yale University intending on pursuing a medical career. But the classically-trained cellist and innovative beatboxer couldn’t resist entering the “Celebrate and Collaborate with Yo-Yo Ma” international competition, where he won second place. As a member of the a cappella group Pentatonix, the 24-year-old musician and his bandmates won the third season of the NBC reality series “The Sing-Off.”