Apparently they were upset that someone questioned their parenting skills. From Tulsa World:

BARTLESVILLE — Two Bartlesville residents were charged with felony child abuse following a Saturday altercation on west Frank Phillips Boulevard in which a baby was thrown to the ground twice and two children were dumped out of a stroller in front of several witnesses.

Gene William Lee, 29, and Geneva Stephanie Marie Curtis, 33, were arrested by Bartlesville police following an investigation into incidents that occurred Saturday night near the Budget Inn.

[…]

The incident began a little before 10 p.m. at the hotel at 1410 S.W. Frank Phillips Boulevard, where witnesses saw Lee and his family exiting the inn arguing as they walked along.

One of the children ran into the street — one of Bartlesville’s busiest thoroughfares — and reportedly was nearly hit by a van while the parents “showed no concern for the child,” according to witnesses who spoke with police. Concerned bystanders shouted to the couple to “watch their kids better.”

Lee responded by removing a baby he had strapped in a carrier on his chest and throwing the child to the ground, shouting at the witnesses across the street. According to a police affidavit, as the baby lay face down on the ground, Lee advanced on the bystanders with his arms waving wide, asking what they were going to do about it.

Curtis, meanwhile, was pushing two children in a stroller and became angry at the bystanders calling them “hoes” and “sluts,” the affidavit stated. Witnesses told police she pushed the stroller around erratically then dumped the children out onto the ground in a fit of anger.

When the witnesses informed the couple that they had made a 911 call, the parents grabbed the children and began running off.

Needless to say they were caught, the children were found to be injured and the couple, who both have previous felony convictions cooled their heels in jail awaiting bond.The second time the baby in the stroller was thrown came when a witness to the original incident, following Gene to keep tabs on him before the cops showed up, spotted Gene hiding behind a Family Dollar. Gene threw the baby in some bushes and again wanted to fight. Every one’s a tough guy when they know the cops are coming.

This part will shock you, Gene was also charged with possession of marijuana when cops found pot on him and he has a history of drug convictions. Look at the mugshots included in the Tulsa World story and you’ll see Geneva got lucky when she dodged a drug charge.

But legalizing pot would have made this situation better I’m sure.

h/t So Jaded @ Dreamin’ Demon