SIL asked me if I was attending nephew's preschool program (not her kid, her nephew as well). I had no idea what she was talking about and had to actually edit my email to her.
My original response: Why the everloving heck would I go do that? It's a bunch of kids just standing around staring at each other. What is cute about that?
I'm also the aunt who tells the same nephew "You've mistaken me for the nice Aunt, go find someone else."