If the plants are chopped up by boats or other activity, they can grow into new plants in different parts of the lake.

You can get a little fragment of that and it can grow into a whole new plant.

Plants don't [respect] the same borders that a chain-link fence or a house has. They'll go property to property.

You would think it's not as dangerous as being out in the street. How could two boats out in the middle of nowhere collide with each other? Because boaters get distracted. They get lost in the feeling of wide openness, and they become careless.

A rising tide lifts all boats

Little boats should keep near shore