From Yahoo! Style we get bad Santas — spelled with an unnecessary (and incorrect) apostrophe:
Someday the writers and editors at Yahoo! Style might actually display some knowledge of English grammar. This is not that day:
The plural of a name that doesn’t end in S is just the name with an added S, like this: the Clintons, the Obamas. (Adding an apostrophe makes the name a possessive, not a plural.) If the name ends in S, make it plural by adding an ES. But under no circumstances does the plural involve an apostrophe. Unless you’re writing about Mr. and Mrs. Apostrophe; then they’re the Apostrophes.
If well-educated editors overlooked this error on Yahoo! Style, their friends’ and families’ faces would fall to the floor:
I’m assuming that the friends and families (there’s probably more than one family involved) have separated faces, so there needs to be an apostrophe after the S on both friends’ and families’.
The editor for Yahoo! Style should head back to elementary school to learn the importance of the apostrophe:
Without the correct punctuation (and that would be two apostrophes), that headline leaves me scratching my head and dusting the dandruff off my keyboard. Were one girl’s outfits responsible for one boy’s bad grades? Or were many girls’ outfits responsible for many boys’ grades? Or was it one girl’s outfits and many boys’ grades? Or many girls’ outfits and one boy’s grades? Oy, now I’ve got a headache. I think I have to go lay down.