A Boynton Beach man is facing a charge of aggravated child abuse, after authorities say he broke a child’s arm for dropping a kitten.

Last Friday, Palm Beach County Sheriff’s Office deputies arrested 30-year-old Brandon Rubin.

According to the arrest report, he explained to deputies that the 5-year-old child and his ex-girlfriend’s 4-year-old son were “playing castle” using chairs.

The man alleges he heard a loud noise while in another room of the home, and adds that he saw the 5-year-old old on the ground, exclaiming that his arm was hurting.

Rubin says he took the child to a pediatrician and then to an emergency room. The boy eventually underwent surgery.

The 4-year-old child told investigators that Rubin hurt his friend’s arm after Rubin “hit him really hard,” according to records.

The fall, along with subsequent kicks, fractured the child’s arm and left marks “all over his upper body,” sheriff’s office records state.

Meanwhile, the 5-year-old stated that Rubin grabbed him by the hand, put him in a headlock, then picked him up and dropped him to the ground, causing him to fall on his face and arm. He then told the boy to say that he fell while “playing castle.”

Rubin’s former girlfriend told investigators that she was in the bedroom that morning, when she heard something hit the ground.

She saw Rubin kick the crying 5-year-old. The woman adds that she noticed red marks “all over his upper body,” sheriff’s records state.

In addition, Rubin reportedly told the woman that he was upset because the child threw one of Rubin’s two kittens on the ground.

For that reason, he picked up the boy and dropped him “because he wanted him (to) see what it was like to be dropped to the ground,” she told authorities.

Court records show a history of violent incidents for Brandon Rubin.

Another former girlfriend documented numerous incidents of alleged physical abuse, “just in case anything serious happened to the point I disappear or something,” she wrote last year in a petition requesting a protection order against him. He has not faced criminal charges in any of those incidents.

Authorities arrested Rubin four years ago, after he reportedly hit another woman, threatened to kill her, and then fired a gun into the ground.

The state dropped certain weapons and aggravated assault charges in that case when he ended up pleading guilty to a misdemeanor battery charge.

He is being held in the Palm Beach County Jail in lieu of a $50,000 bond.