A man and woman in Missouri are facing child abuse charges after they allegedly put their infant son in a microwave and dropped him -- all while trying to imitate a TV commercial.

Derick Boyce-Slezak and Mikala Boyce-Slezak of Park Hills, Missouri were charged Tuesday with felony abuse or neglect of a child and are jailed on $500,000 bond.

The injuries were discovered when the baby, who was younger than 4 months at the time, was taken to a St. Louis hospital for a rash. Doctors at the Cardinal-Glennon Hospital Emergency Room found second-degree facial burns and head injuries.

The couple claimed a cleaning agent caused the burns, according to court documents obtained by the St. Louis-Dispatch.

During a Monday hearing, a state social worker claimed Mikala had blamed her infant son’s head wounds on Derick who dropped the baby while trying to imitate a commercial he saw on television. It's not clear which commercial it was.

The state social worker also said Mikala believed Derick placed the infant in a microwave and briefly turned it on, court documents said.

Mikala pleaded the fifth at the hearing and Derick didn't testify.

The couple also has a daughter but waived custody shortly after she was born in 2016, the St. Louis-Dispatch added.

The Associated Press contributed to this report.