What we usually call the kicking cat effect refers to the transmission of a bad emotion, which is a chain reaction that transmits people's dissatisfaction and bad mood in the order of interpersonal relationships from strong to weak.
For example, when a husband is scolded by his daughter-in-law, the man may scold his child, and the child will kick the cat who is watching the hilarity next to him, and the cat will catch a few mice to vent his dissatisfaction.
Today, in the Premier League West Ham United has a real "kick cat effect", although the meaning is a bit different.
After Zuma's video of the cat kick was announced on the Internet, West Ham boss Moyes was still sending Zuma to start in the 24th round of the Premier League against Watford.
Such a decision was condemned by fans and commentators.
Former Tottenham player O'Hara suggested Moyes should punish Zuma rather than send the player on the game, which he considered unacceptable.
Zuma's cat kick did not affect West Ham's competitive form, and the Hammers won 1-0 at home to Watford.
After the match, West Ham overtook Manchester United to move up to fourth place in the Premier League. Their next league game is Leicester City.
Whether the team manager Moyes will continue to let Zuma start in the Next Premier League will be a point of view.