How to Kill a Mermaid: accountability after the worst day

How to Kill a Mermaid: accountability after the worst dayby: Gareth LockPublished on: 01/11/2026

Linnea Mills drowned on a training dive in 2020. Ahead of How to Kill a Mermaid at DEMA, Gareth Lock asks why diving reaches for blame after a death, and what restorative accountability and learning from near misses could offer instead.

Gareth Locklang:en
How to Kill a Mermaid: accountability after the worst day

What Did "Closed" Mean? Learning from a Diving Fatality in Alberta

What Did "Closed" Mean? Learning from a Diving Fatality in Albertaby: Gareth LockPublished on: 01/11/2026

A diver died in Alberta after being told a reservoir gate was closed. Gareth Lock looks at how the dive made sense at the time, the signals that were lost, and what creative sentencing can offer the diving community. This builds on a blog from 2025

lang:enGareth Lock
What Did "Closed" Mean? Learning from a Diving Fatality in Alberta

What if I am wrong? How would I know?

What if I am wrong? How would I know?by: Gareth LockPublished on: 01/11/2026

Why do divers stay quiet when they have doubts? Gareth Lock looks at pluralistic ignorance - group think and alignment - what it means for turn pressure, checks and calling dives, and how dive teams can make their real views visible.

Gareth Locklang:en
What if I am wrong? How would I know?

Learning from setbacks without losing confidence or lowering standards

Learning from setbacks without losing confidence or lowering standardsby: Emma BarrowPublished on: 01/11/2026

Mistakes trigger harsh self-talk that narrows learning. Emma Barrow shows how the RESET approach (mindfulness, connection, encouragement, productive feedback) helps divers stay accountable and keep high standards without attacking themselves.

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Learning from setbacks without losing confidence or lowering standards

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