What is the 'When in Doubt' Principle emphasized for experienced keepers regarding environmental checks?

Answer

If a plant cannot be definitively identified as safe and beneficial, it should be treated as toxic

The most important insight gained from observing experienced keepers is the 'When in Doubt' Principle: if identification as safe and beneficial is not 100% certain, the plant must be treated as toxic.

What is the 'When in Doubt' Principle emphasized for experienced keepers regarding environmental checks?
fooddietPoisonreptiletortoise