[kitkat]

***Agreed. That's what I was taught in grade school. But I think it's nitpicking for the original poster to claim the writer made an "obvious mistake in grammar."***

Well...I guess that makes you the expert on nitpicking then.

[Clara Lou]

OK. I'm a nitpicker, then. But why would you need to get snippy about it?
Yes, and you're so smart and refined that you got snippy over nothing. Impressive.