Is Koh Samui safe, and is the honest answer about crime at all?

The risk that puts visitors in hospital on Thai islands is overwhelmingly the road rather than crime, and scooters on unfamiliar hills with no experience are the recurring theme. That is sourced rather than anecdotal: https://meetlocale.com/guides/is-thailand-safe-to-travel-alone Rental scooter disputes are a separate and well-documented problem, covered here: https://meetlocale.com/guides/thailand-scams What we cannot source is which specific situations caught people out on Samui itself. What would you warn a first-timer about there?