Ex-T had an English degree, and I once printed out an email I'd sent to ex-MC for her to read. She read through it, and I commented on an error in it, like I'd used "they're" instead of "their," something like that. And she was like, "Yeah, I noticed that." I was super careful with future emails to her. Ex-MC sucked at grammar and stuff. Current T seems to have a pretty good grasp on the English language, thought does some random stuff like unnecessary hyphens in "I've been in private practice for 15-years." But he's otherwise a really good writer, like in email replies, so I let it go. I am careful in what I send him though. (I'm a copy editor by trade.)