Being a former English Graduate Assistant who had to teach both Freshman and Junior English, I have a common and annoying-to-non-grammarians pet peeve:
"It's" == "IT IS"
"Its" == "BELONGING TO IT"
And much as I love the Corner and Chud, this never gets corrected.
Also,
"A PERSON (singlular) CAN ALWAYS FIND A MOVIE TO THEIR (plural) TASTES." And this is even in mainstream journalism now. Is it so hard to say "his" or "her"? I know they want to avoid sexism, but couldn't you do that correctly by saying, "People can always find a movie to suit their tastes" ? See how easy that was? See? ...
Okay. I'll go back to the rest home now...
