grammar

Grammar epidemic sweeping the Internet

Most cases of bad grammar and bad spelling don’t really bother me, but for some reason there are certain things that get under my skin. There’s one that seems to get more prominent every day. I’m not sure where it came from but I’m seeing it all over the place. I saw one of the worst examples today:

RELAX AND ENJOY YOURSELVE’S, MY FRIEND’S

WHY?? WHY would you think that every plural takes an apostrophe + s? How is this happening? The apostrophe is.. such a simple thing, no?