Hani leaves the lab

Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.

Hani decides she is just going to leave the lab at exactly 7 minutes, and not mess with the balloons. She uses her watch to accurately keep track of her time, leaving after exactly 6 minutes and 40 seconds. However, with the additional 7 minutes she gains from not bursting any of the balloons through inflation, her total time is 13 minutes and 40 seconds. She therefore earns fourth place in the task.

(Written by Karl Craven)