When Whangarei tutor Toni Daly was 15 she was kicked out of school for blowing up the girls toilets, though she says it wasn't her.
Decades on she spends more time in a classroom than ever- teaching science at NorthTec, working on her doctorate and now prepping for a prestigious science conference in Europe.
Ms Daly left for Vienna on Friday where she was chosen to present at the 2015 meeting for the Society for Molecular Biology and Evolution.
"I was pleased and I was surprised," she said. While she was not sure how many others would be presenting, about 700 applications were declined.
Growing up in London, Ms Daly was the first to admit she was no perfect student but remains adamant she had nothing to do with the bathroom explosion.