I'm sick of it. There is no such possessive word as "who's", unless you have a person named "who" and the word is referring to something that person owns.

You can also write "who's" if you mean "who is"...but that's not a possessive, it's a verb form.

The possessive of "who" is "whose" all right? WHOSE. Got it? People used to know this a couple of generations ago. What is going on out there?

It's enough to drive a pedant who's paying attention to all the piddly little details of whose language skills are correct and whose aren't absolutely nuts!

So stop it. You know who you are and you have no further excuse now. ("G")

And, Cletus, stop spreading rumours about us pedants!

- LH