Beyond the Case

17 Mistakes, a $475 Million Exit and What Matters in Life - John Osher

• Sohin Shah • Season 1 • Episode 99

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John Osher, the creator of SpinBrush, turned decades of experience into a list of 16 mistakes entrepreneurs don’t have to make. In this conversation, he shares the life behind those lessons, from driving taxis and working as a plumber and carpenter to building a business whose sale to Procter & Gamble ultimately totalled $475 million.

John’s journey reveals how seemingly unrelated experiences can prepare you for opportunities you couldn’t have anticipated. Practical trades taught him how things worked, spiritual exploration helped him find stillness under pressure, and years of successes and setbacks sharpened his judgment. His conviction came from experience, honest feedback and testing, and from recognising when his skills and resources matched an opportunity.

He recounts the decision to discard $500,000 of flawed inventory, the negotiations behind the P&G sale, and the importance of protecting future upside in a deal. He also shares the 17th mistake he added to his original list: failing to research an idea thoroughly because you’re afraid of discovering something that undermines your dream.

Through it all, John returns to gratitude. He recognises how often success depended on circumstances beyond his control, and remembers celebrating the $475 million outcome with a Whopper at Burger King.

Here are the Top Takeaways from the conversation:

  • Start small and build confidence through the experience of doing.
  • Treat every job and life experience as preparation for opportunities you cannot yet foresee.
  • Stay open to new opportunities without forcing yourself to pursue the next one.
  • Distinguish an interesting idea from a viable business by testing it against clear criteria.
  • Match an opportunity to the skills, relationships and resources you can bring to it.
  • Seek honest feedback and make it clear that politeness is less useful than the truth.
  • Research your idea thoroughly, especially when you’re afraid of discovering reasons it might fail.
  • Build conviction through evidence before making a larger commitment.
  • Maximise your winners and manage your losses instead of expecting every decision to succeed.
  • Create space for quiet reflection when a problem feels beyond your experience.
  • Address product flaws before customer complaints force you to act.
  • Protect long-term trust even when doing so requires accepting an immediate financial loss.
  • Recognise the difference between enjoying the creation of a business and being suited to managing it indefinitely.
  • Plan your exit early enough for it to inform how you build the business.
  • Understand who would benefit most from owning your business and why.
  • Preserve your alternatives before entering agreements that could limit your future choices.
  • Look beyond an organisation’s size and understand the person across the negotiating table.
  • Examine how a deal rewards future success as carefully as its initial price.
  • When an agreement becomes difficult for either side, look for a solution that preserves the value you can create together.
  • Let gratitude temper pride by recognising the role of luck and circumstances beyond your control.
  • Make room to enjoy success without needing an extravagant display of it.
  • Value the experiences that shaped you, including the ones you would never have chosen.

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