The Mouland family was on their way back from Disney World, and Shannell was worried about how Kate, her autistic daughter would handle the plane ride.

When businessman Eric Kunkel took the seat next to Kate, the 3-year-old immediately reached for him and called him “Daddy.”

Shannell wasn't sure how Kunkel would react, but the man showed such unexpected kindness that Shannell posted a blog titled “Dear ‘Daddy’ in Seat 16C From Philly,” and the thank-you note went viral.

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