I say to him, "You're a Giants fan?" and his mom says, "actually, he has a collection from lots of teams." Just then, the boy shining a bright smile looks at me and says confidently, "actually, I'm an A's fan."
Without hesitation, his sister chimes in, "me too!" Mom is chuckling silently. "OK!" I say, "Go A's!" and the kids now go, "A's!" The door opens and the three of them step off.
The boy quickly turns back to me and we stand there smiling as the door slowly closes.