I haven't gotten any pictures, for fear of being chased off with a shotgun, but I love signs on houses that indicate who lives there. They almost ALWAYS use an apostrophe when it isn't necessary.
How many signs on houses have you seen that say:
The Smith's?
The Johnson's?
The Peterson's?
Yeah, unless the house belongs to a guy called "The Smith," this is wrong. It should either say
The Smiths, indicating simply who lives there, or
The Smiths' (or The
Smiths's) indicating that the Smiths (plural) own the house.