why am I still surprised

I don't know why I still get surprised by this kind of thing, but I really do.

This morning I went over to my mom's to drop off a job for Ben. I got out of the car and was walking up the door and this minivan with a load of kids in it was driving by... very slowly... and staring. I looked over my shoulder several times wondering why they'd slowed down to like 5 mph. I must have had a really confused look on my face. I couldn't figure out why they were all staring.

So I ring the doorbell and as I'm waiting it hits me. They were looking at my car, not me. Duh.