A Hunch

"Hello Bob."

"Hi Dr. A."

"Tell me, Bob. Are you doing any sports?"

"I just finished baseball. I did soccer and fencing. I do swimming lessons and gymnastics and I'm playing basketball."

"Which one is your favorite?"

"Basketball."

"Why is that?"

"Well, I've only played once so far but I'm pretty tall so I think it's going to work out."