Tell me about a time you failed, and what you did next.

The first time I tried to teach a jiu-jitsu class, my voice cracked. Halfway through the demonstration, I lost my train of thought. My hands were shaking. Friends from school were watching. I'd been training for a while, I was competent, but the moment I had to perform that competence in front of people, my body betrayed me.

My immediate reaction was to protect myself. I went home that night and mentally downgraded jiu-jitsu from a core part of my identity to "just a hobby." If it didn't matter, then failing at it couldn't hurt me. That's a defense mechanism I've learned to recognize: when something threatens how I see myself, I minimize it before it can damage me.

But I caught myself doing it. I sat with the discomfort instead of running from it. And I realized the failure wasn't about jiu-jitsu. It was about a deeper question: am I enough? Not am I good enough at this specific thing, but am I fundamentally enough as a person to stand in front of people and be seen?

I went back the next week. I taught again. My voice still wasn't perfect, but I didn't leave. And the failure taught me something more valuable than any successful class would have: the gap between knowing something and performing it under observation is where all the real growth lives. That gap shows up everywhere, in engineering, in interviews, in leadership. I'd rather know it's there and work with it than pretend it doesn't exist.