The phone buzzes. It’s the bank. Payroll is due tomorrow and the numbers don’t add up. Most people would call that rock bottom — but for John Williamson, it was just one of many.

John built Construct Health into a 40-person physiotherapy and occupational health business, lost it all (twice), and somehow found the strength to start again. Through bankruptcy scares, sleepless nights, and the crushing weight of leadership, he discovered that courage isn’t about climbing mountains — it’s about standing your ground when everything in you wants to quit.

In this conversation, Sam and John unpack what it really takes to survive as a founder — not the glory, but the grit. From his darkest moments to his rebirth through ultra-endurance running and boxing, John’s story is a masterclass in resilience, self-discipline, and redefining success on your own terms.

🧭 In This Episode

• The early ambition and purpose that drove John into physiotherapy and business ownership
• The rise and near-collapse of Construct Health during the mining boom and bust
• What it really feels like to tell your staff you can’t pay them — and why he never missed payroll
• How daily habits, structure, and breathwork kept him alive when everything fell apart
• Lessons from an unexpected mentor: the former Scheduling Secretary to a US President
• Why discipline and cashflow awareness beat ego every time
• Finding peace (and pain) through ultra-marathons and stepping into a boxing ring
• The emotional cost of selling your life’s work — and what’s next with Col Ferret Holdings
• Why sometimes, “You can take more load than that” is exactly the advice you need

🧱 Key Quotes

“I didn’t know if I could do it — but I knew I’d keep turning up.”“When you’re the last line of defence, there’s no one left to pass the problem to.”“Bravery isn’t about the big gestures. It’s about getting up again tomorrow when every part of you wants to stay down.”“You can take more load than that.” — A line that changed everything.

⚡️ The Brave Moment

John’s moment of truth came standing on an airport tarmac, $8,000 over his overdraft, with payroll due in two days. Panic set in — but instead of breaking, he built new habits, found mentorship, and clawed his way back to solvency. That single decision — to keep showing up — reshaped not just his business, but who he became.

🥊 The Lesson

Rock bottom isn’t failure. It’s feedback.
It’s where you decide who you’re going to be next.

🌍 Connect with John Williamson

• LinkedIn: John Williamson
  (search “John Williamson Construct Health” — not the singer!)
• Website: unventured.life
  (launching soon)
  Unventured Life helps business owners and executives apply the principles of challenge and adventure to leadership and personal growth.