More often than not, the people around me tend to get very defensive when I point out their infractions of the rules of the English language. What they don’t realise is that I’m not aiming to berate them; I’m just trying to help them by dragging them (kicking and screaming if need be) into civility.
I wish I had known about this as a younger lad, but there are those who have turned this into a profitable enterprise. Meet the professional pompous pedant [5.5 MB, MP3]. Now that’s a real career.