Despite being toilet-trained for a year, he wet his pants at daycare on Friday because he was too scared to go to the toilet alone.
Listening to her son screaming from inside the toilet and fearing he was being scalded with hot water was a horrific experience, Wakelin said.
Zachery became trapped after he ran ahead of her and slipped into the toilet as another person was leaving. Onlookers, who included members of a motorcycle group, tried to bash down the door. They could see him pushing the unlock button through a gap at the top of the door, but the door remained locked.
She was not happy with the response from the Invercargill City Council, who told her they did not know how Zachery became trapped. "I still haven't got any answers," she said.