Bob Gerau of Deer Park has been selling fireworks for 45 years.
"It's a passion for some of us," he said.
Though Columbia doesn't allow the sale of fireworks within city limits, Gerau said Missouri is a fireworks-friendly state because it hasn't banned the sale of fireworks altogether, as some states have.
“Something grabs a hold of us. Some people like golf, some love to gamble and some people light off fireworks,” Gerau said.