"This bloke is kidding himself, I could do that."
Sound familiar? That's what people around the country have been saying from their lounge rooms as they crack open another beer while watching Channel Nine's reality show Australian Ninja Warrior.
It might be you saying it. It could be your mate. But it's certainly not me.
I was thrown into the deep end with Australian Ninja Warrior semi-finalist Lee Campbell for a training session at his obstacle course next to the Canberra greyhound racing track.
For an idea of how hard it was, I was struggling to lift my arms to hit the keyboard at work for the next few days.
Now I've got the utmost respect for anyone who manages to crack it on that show.
The Ninja Warrior craze is sweeping the world, bringing together gymnasts, rock climbers, Instagram bodybuilders, tradies, firefighters, fitness models and so many others.
For a guy that hasn't set foot inside a gym barring a few fleeting visits as a 16-year-old I was well and truly out of my comfort zone.
Lee and I have crossed paths in heated local footy derbies but this was completely new, testing my grip strength and mental confidence like nothing I've done before.
The gruelling Ninja Warrior course is made up of 17 individual challenges including a chimney climb, an unstable bridge, jungle ropes and a "warped wall".
I didn't have to tackle the "bridge of blades" or the wall, but the course was by no means easy.
I was jumping over walls, running over logs, holding onto a cargo net for dear life, swinging on ropes, and battling bar climbs.
Every time we rolled to a new obstacle I looked up at it thinking there was no way I'd be able to conquer it - and for the most part I was right.
I soon found that to succeed on the course you had to break through plenty of mental barriers.
You can't afford even the slightest mistake. Jump too early? Gone. Jump too late? Bye. Your clothes can't even touch the water.
I often wasn't backing myself to make a big leap, but then I'd hear Lee barking a mix of encouragement and tough love.
I don't know if I'm quite cut out to be a Ninja Warrior, but there's a part of me that's itching to get back and have another go.
The Verdict: It was intense and left me sore for days, but I had an awesome time testing myself. It was a great opportunity to get an idea of just what the athletes on the show are going through - albeit on a much smaller scale. For those of you that have watched the show and are desperate to have a crack, this is your starting point.
Details: Keen to see how you'd fare on the popular reality show? Get in touch with obstacle race expert Lee Campbell at B.FIRM Fitness. The Australian Ninja Warrior semi-finals continue on Channel Nine this Sunday night.