"I don't mind how many we have, as long as we're finding them, acting on it, and working with parents and police to reduce the numbers," says head teacher Lisa McCall.
An A4 plastic wallet sits on her desk at Wales High School in Rotherham, South Yorkshire, stuffed with confiscated vapes and refill bottles.
Beside it, a repurposed chocolate box holds dozens more.
McCall says vaping was never a problem at the school until a "really dangerous incident" one day last year when a student was offered a vape spiked with "some sort of illegal substance".
The 15-year-old student described the experience: "The floor felt bouncy, my vision went blurry and then I had a panic attack."
He was taken to hospital before later making a full recovery.