Mean things on the highway

So we're driving to Sac to see Nana Papa and traffic is rather slow and obnoxious in some parts. This idiotic driver seriously cuts in front of me in the fast lane when the lane he/she was in is actually going faster. I had noticed this driver earlier doing really stupid things that actually inhbit the flow of traffic rather than help it. So I comment, under my breath, what an idiot she is and something about how drivers like her are the reason traffic remains so nasty. So Kieran says: "Mama, we don't call people stupid. Calling people stupid makes their hearts hurt." So I acknowledge that he is right, and he says: "We don't say mean things on the highway."

So cute! I got told by my 4 year old!