When in doubt about forming the possessive of a word, just follow the example of this Yahoo! Style writer:
Does the apostrophe go before the S? After the S? Unsure? Put it before and after! Turn your dilemma into dilemma-ade!
OK, so I lied. There is no single punctuation character that is publicly misused. Every punctuation character is misused in public, especially on Yahoo!. This time the punctuation is a hyphen and the site is Yahoo! Finance:
The rule: Don’t put a hyphen between an adverb ending in -LY and the word it modifies.
Somebody at yahoo.com probably misunderstood a punctuation rule when it comes to quotation marks:
In the U.S., commas and periods go before a closing quotation mark. (In other English-speaking countries, they go after the quotation mark.) But, regardless of country, two punctuation marks never go before a closing quotation mark: Colons and semicolons.
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.
When did 14-year-olds become preteens? Oh, when they were born and stayed preteens up until the day before their 13th birthday — at least according to everyone who isn’t a writer for Yahoo! Style:
I know that Yahoo! writers and editors are not good with numbers. They confuse millions and billions, think that digits and letters are the same thing, and just don’t get percentages. But you’d think they’d know that fourteen isn’t a preteen because teen is part of the word.
If ever there was a site that needed a competent in-house editor, it’s Yahoo! Style. Someone who knows that in-house needs a hyphen would be a start:
Someone who knows that “designed in house from a pedigree of experienced industry personnel” makes absolutely no sense could be helpful. It would be great if that person knew to shorten that to “designed in-house by experienced industry personnel.” Someone who knew that “boasts their apparel to be” also is nonsense and should be something like “boasts their apparel is.” An in-house editor would be great. Heck, even an outhouse editor could be great.