Has someone said something to you, true or not, that you just can't get out of your mind?

I have a couple, some good some bad. Once I cut off a guy, unintentionally, and it was a slow line. He stuck his head out of the window, looked at me and said; “you know you’re an asshole, right?”

Even though it wasn’t intentional, and even though I could care less about the guy, I think it was the way he said it – it is stuck indelibly in my brain. Perhaps that’s a good thing: it reminds me not to cut people off.