It took M a while to appreciate what a broken arm in Kindergarten means.
Initially, any comment about how "cool" it was brought tears. "How could someone say that?!! It's a terrible disaster!" But now, a few days later, after glorying in the constant questions, attention, and requests to tell how he broke it, he's pointing it out if people don't comment fast enough. "Excuse me. Do you see my broken arm?"
But on the morning of the first day with his cast and sling, picture day, his birthday, he still saw it as a reminder of his scary accident. Looking at it made him sad.
The Avengers stickers didn't make it through the first day, but they got him through the morning. By the afternoon, it was no longer an issue. "At what point to I bring a black marker to school and let my friends write their names?