Boat Cushion Damage from animal

[tummyman]

Sometime over the last two weeks, both myself (minor damage) and my next door neighbor (serious damage) had damage done to our boat seat cushions. Boats were docked on Winnipesaukee. Some sort of animal got in and chewed holes into the foam right through the vinyl, left tears in cushions, etc. Even chewed up a Bizer map. We can both see evidence of paw claws....looks like something small, like maybe a mink or weasel. Has anyone ever heard or seen damage like this to boats that are covered? And if so, what can be done to prevent it, other than catching the animal? In all my years of boating, never saw or experienced anything like this.