Having folded the shutters back, Goldy bends down onto one knee, points the end of the tool at the clear plastic and presses a small button to activate the laser. She squints her eyes as well. But as it turns out, the beam is quite faint, tending towards the infra-red end of the spectrum for most of its power. A tiny flame wicks up as the light almost invisibly burns through its target.

She slowly moves the tool upwards, an inch at a time, scoring a vaguely straight vertical line. "It looks like this may take some time. So... um... chat amongst yourselves."