Grammar Nazis

I see your point. I concede that I should have dropped the "but" because one cannot start a sentence with it, but the "b" in "but" should not have been capitalized. One does not say "Ah, He saw us!"; One says "Ah, he saw us!" or "Ah! He saw us!". I used a comma, therefore I did not capitalize the "b" in "but".

Er... No, you did not. I see no comma in your original post.