Let this be a lesson to everyone: Do not blatantly steal a foul ball from a kid, especially on national television.

Sunday, the St. Louis Cardinals and Chicago Cubs were pitted in a 2-1 game, with one out recorded in the bottom of the fourth inning. It was then that, during outfielder Ian Happ's at-bat, a foul ball flew its way into the right-field stands. But, when the Cubs first base coach tossed the ball to a kid in the front row, an adult fan sitting behind him reached under his seat as it rolled away, and proudly showed off his new collectible.

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Almost immediately, social media took notice. His grab made the rounds online, eventually gaining the attention of the official Cubs Twitter account.

Just a little under an hour after the foul ball robbery, the Cubs posted a tweet with the kid in question, who was surprised with a game-used ball — and another ball signed by Cubs infielder Javier Baez.

However, a later report suggested that the man gained notoriety based on the case of misunderstanding. David Kaplan, a sports reporter in Chicago, tweeted in part, "The man who grabbed the ball on the widely seen video had actually already helped the little boy get a ball earlier."

At the end of the day, though, the kid went home with two happy hands. So, who's the real winner?