Just had some awfully run on sentences, is all.
I love a good comma, you can add a comma, and another, and pretty much just keep talking, and talking, and talking. ;~)
We are limited in what we know in that the phone number on the ad led to the secretary of a construction company the trainer also owns, and she didn't know a lot... didn't know if there are 10 or 100 horses. She seemed to think they wanted grooms, and people that could fix fence. Least that's what she knew enough to mention.
My college English professor, as well as the English teacher to whom I am married, do not care for an excessive use of commas.
Commas are nice; they are not as nice as the king of punctuation, the semicolon. I love semicolons; I use too many of them in my writing. They can often be used where you would try to stick a comma, transforming a run on sentence into a grammatically correct, if somewhat ornate sounding sentence; I use them more than any other mark other than the period, I think.
Also I use them in most of my programming so that makes them even cooler.