And god forbid your grammar was wrong.

I'm a closet Grammar Nazi. I silently judge, but rarely call anyone out. The only time I call people on their mistakes are when they are putting someone else through the wringer for a grammar or spelling error and in the process make a mistake themselves. Because if they are going to run around correcting people they better bring their A GAME.

I try hard to make sure that I don't mistype, but it still happens, especially when I am tired. I imagine others experience something similar with grammar

I think it is sad that some apparently don't know the difference between they're and their, but I'm beyond the point of trying to point out the failings of someone else's education.