I have a few facebook friends that I went to high school with. I know we all learned the same things from the same teachers. Yet most of them can't spell, use punctuation or use the right "there, their, they're".

Two things that cause prickles to go down my spine are: Using seen instead of saw, and using are in place of our.

If it's a post more than 4-5 lines and no punctuation or really bad spelling I can't read it at all. I refrain from pointing out grammar and spelling mistakes, as some people get offended easily, and they will continue to do the same thing anyway.