Robert Downey Jr. Makes A Kid's Day On Twitter

04/24/2015 09:21 am EDT

The mother of a boy left wounded by a physical outburst of sibling rivalry reached out to Avengers: Age of Ultron star Robert Downey Jr. to help sooth her son's pain.

The woman asked Downey for a simple "hi," and Downey responded by asking the boy to tell him everything.

Here's the conversation.

Downey stars in Avengers: Age of Ultron, opening May 1.

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