Excessive potty-training discipline caused injuries to a two-year-old child that resulted in his aunt and her boyfriend being arrested on child cruelty charges, said Bulloch County Sheriff Lynn Anderson. The toddler’s mother took the boy to the hospital last week and spoke with Bulloch County Sheriff’s investigators about the “various marks” on the child. She told investigators the boy had been staying several weeks with her sister, Sakeema Hineace Usher, 31, and Usher’s boyfriend Marcus Jerel White, 28, both of Dry Branch Village in Register.