It is their cat and I have been telling them about it for more than a year. They don’t want to control the problem.
I am really fed up with having to shampoo the carpet and clean the boat seats over and over again because the neighbor will not control his pet. It is very difficult to get rid of that smell.
There are electric catproofing mats that might serve if you want something humane, and not just putting rat traps in your boat.
But, send them the bill for them too.