A memorable conversation I had with a co-worker, many years ago:

Co-worker: he keeps using made up words!

Me: all words are made up, David.

Co-worker: Yeah, but he’s got the grammar of a 3rd-grader. How did this guy become CEO?

Me: Good grammar doesn’t correlate with intelligence; it just means you took time to learn a set of rules. Like knitting.

Co-worker: I think grammar’s more important than knitting.

Me: Depends on how cold you are.