Variations on apostrophe catastrophes............
There was a road sign not too far from here giving directions to 'St. Mary,s Church & Centre'.
Also, a local company had its entire fleet of vans emblazoned 'Robinson,s'*. The proprietor was a deeply unpleasant man and deserved the ridicule. Having said that, most people probably thought it was grammatically correct.
E & OE
Carruthers
PS * The name has been changed to protect the guilty.