The only thing more annoying than having your grammar corrected is having to be the one constantly correcting everyone's grammar.
It's hard being a Grammar Nazi. For starters, people call you a Nazi.
Source: nakid-in-dc.blogspot.com
Everywhere you go, you're pained by the lack of respect for the English language.
Source: wordsbybob.wordpress.com
Every error laughs at you.
Source: lovenuggets.wordpress.com