Also, trees that pose an unreasonable risk of harm to property must be removed.

The term negligence generally refers to conduct that creates an unreasonable risk of foreseeable harm to others.

With a mild winter it would not be an unreasonable risk to take the old flower heads off if they offend you.

That was taking an unreasonable risk and, therefore, his behaviour broke the chain of causation.

A person who engages in activities that pose an unreasonable risk toward others and their property that actually results in harm, breaches their duty of reasonable care.