Dave creates his 'polythene grief cave'

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

Initially, Dave puts on a coat and exercises by running on the spot and performing star jumps. He then creates a make-shift sauna under the table using a portable heater and some polythene sheeting. In the studio, Greg asks if he Dave was sweating in his “little polythene grief cave”, thus coining the episode title. Dave says he’d found it hard to sweat at all, that day, and had spent most of his time making the sauna only to discover that it didn’t work. Alex confirms that just five drops of sweat were collected in the eggcup, via a “gutter system” through Dave’s buttocks, and Dave earns third place.

(Written by JoGo and proofread by Karl Craven)