don't people butter their muffins?

I was in Einstein's this morning getting breakfast. I was very tempted by their double chocolate chip muffin, but somehow, it seemed too decadent for me (chocolate for breakfast??) so I went with a cranberry orange muffin instead (still mourning the loss of my beloved Starbucks c-o muffin). I asked for butter with it. I don't slather my muffins with butter, but I like a little bit of it. The lady seemed a little shocked that I would ask for butter with my muffin. I didn't think that was such an unusual request, but who knows....