Going to a baseball game comes with some unwritten rules. One of the biggest is that you don't steal balls from kids in the stands.
An adult fan forgot this rule during the Chicago Cubs' 7-2 win over the St. Louis Cardinals in Major League Baseball this weekend.
The Cubshave given a signed baseball to a child after a man was caught on camera snatching a game ball the young fan had dropped.
It is common practice for those fielding an out-of-play ball to toss it into the crowd, as MLB umpires replace balls that have hit the dirt because any scuffs can cause unpredictable ball flight.
A throw into the stands from Chicago first base coach Will Venable landed on the ground, and the older man pounced on the opportunity to get a souvenir.
The Cubs rectified the situation by giving the kid two replacement balls, including one signed by Javier Baez: