More annoying grammatical sins: I'm a person THAT...

[BurtWorm]

It's "I'm a person WHO..." Most people get that one, but then way too many don't make the connection that this holds for every instance in which the noun describes a human being: She's a doctor who cares for people. They're students who don't like to study.

And while I'm at it, I have a confession to make: I committed a sin in a thread title yesterday, switching from a singular subject to a plural pronoun to weasel out of using sexist language: If a person is x, then they are not y. I don't know why I unconsciously made that error--maybe to save space rather than type "he or she." I can't stand "he/she" except on forms. I must type out "he or she." I even type out "himself or herself."