Vallejo police arrested a Farmers Market vendor on Saturday after he allegedly made death threats over lemonade.
The argument began when a man, his wife and their two small children approached David Gray's kettle corn cart to buy lemonade, police said.
The woman asked Gray, 26, of Hayward, for some more lemon in her lemonade, police said. For an unknown reason, Gray became angry at the woman, causing her husband to step in, police said.
Gray then allegedly told the man he was going to beat him up in front of his children, police said. The family subsequently walked away.
However, Gray left the kettle corn cart and followed the family, yelling at them and threatening to kill them, police said.
Officers were called to the scene, and Gray was arrested, police said.
No one was hurt.