Lynn, you are right on compound sentences. What I see is those examples don't fit the definition of "long." The basic rule of commas I was taught was that their use should make the sentence clearer. There are sentences in literature that are an entire paragraph long and desperately (Desperate Sentences?) to make them understandable. When I have time today, I'll take a look at "Eats, Shoots and Leaves" and see what Lynne Truss has to say.
Bethy, you are right. I didn't see that.
Quote
4. Comma. Without it, 'her' becomes possessive and it reads as if he is kissing 'her Lois'. Which makes no sense!
cool
Artemis


History is easy once you've lived it. - Duncan MacLeod
Writing history is easy once you've lived it. - Artemis