I think it's funny to show how punctuation really can make a difference in the way we come across. Take this example. The words are the same in each, but the punctuation is different. This is something my dad told us as kids. He always corrected our grammar, but never in a condescending way, and I am glad he did.
Thanks,
Andrew
Code:
Private. No swimming allowed.
Private? No. Swimming allowed!
Thanks,
Andrew