Today’s ‘Times’ includes a letter from Michael Plumbe, former Chairman of the Queen’s English Society. He recalls visiting a local greengrocer to complain about his “errant apostrophes”.
“He winked. He told me passers-by often popped into the shop to complain. Then, while there, they would buy something. Crafty.”
ninevoices 
Sign in our local hospital: women’s and childrens. Wouldn’t women and children do?