As I noted in this post, I get annoyed by egregious grammatical errors in others' speech. Well, my six year old son takes after me. Last night right before we were going to pray the family Rosary I said something using the subjunctive in a fairly archaic manner. Since he didn't recognize the form, he thought it was a grammatical error. He insisted that I correct my grammar, which I didn't. So, when it was his turn to share his intentions for the Rosary he said, "I wanna pray that dad's grammar improve."
That's the kind of house I live in.