A Miami Trace School bus driver has resigned after an incident involving a young male passenger.

According to a report on the Ohio News Network, Carla Knisely's 8-year-old son was riding home from school when she says the bus driver, in her words, "snapped", threatening to spank the child for misbehaving.

The incident was reported to the sheriff's office, who originally filed the report as menacing, but the case was closed. The sheriff's department would not explain why.

The bus driver- turned in his resignation 3 days later saying he "couldn't perform well in a restricted environment".