There are 21 parking spaces, 14 for residents and 7 for visitors. New neighbour, who has a designated space, always parks in a vistors' spot closer to thier house.
Recently they seem to have acquired a small sailing boat. It sits on a trailer which they park next to thier car and takes up two more vistors spaces.
In thier defence - the car park is always half empty so the issue is not that somebody wouldn't be able to find a space.
I still think this is unreasonable though.