The scorching sun had already climbed high above Elthorne Park, and the meadows where Hanwell Carnival was about to take place offered very little shade. Since the morning, Kash had been battling tangled strings, Pythagorean geometry and an acrylic line marker alongside a couple of Carnival volunteers. Luckily, reinforcements were on their way.

At 11:00, GoodGymers Angela, Chris and Harvey arrived to lend the event organisers a hand in setting up Hanwell's big community celebration. Little did they know that their task would involve marking out stall pitches rather than assembling gazebos.

"I've marked football pitches before." - Harvey.
"Great, so we have an expert now!" - Kash.
"No, I wouldn't say that..."

By GoodGym standards, Harvey was definitely an expert - and Angela and Chris quickly rose to that level, rapidly gaining experience on the job.

The team rushed to finish a batch of stall pitches before the midday break (it was really hot, so a break was very much needed!). Perhaps feeling a little too confident, they left one corner of a rectangle unchecked. It soon became clear that the shape didn't satisfy the Pythagorean theorem - in other words, it wasn't straight. The rectangle wasn't really a rectangle at all, but an impostor quadrilateral.

The mistake was quickly corrected, and the rogue white line on the grass was sprayed over with red paint. Kash kept hold of the red spray can to mark the pitch numbers, which turned out to be a lot of fun.

"Kash, you're a tagging natural!" - Chris.

When you think about it, GoodGym offers a rare opportunity to do graffiti-style tagging without being accused of vandalism. How cool is that?

Having marked and divided the large rectangle into smaller pitches, the team moved on to six more boxes around the crafts tent, which was still being erected. The speedy GoodGym crew finished their grass graffiti before the tent was completed and just in time for a well-earned lunch break.

Great work, everyone!