Pi

We went to a party tonight and I was pretty quiet as I usually am around Barb's friends.  Somehow we started talking about Pi and I started to explain how Pi is the ratio of the circumference of a circle to its diameter.  One of the ladies said she noticed how I lit up when I was talking about Pi.  Barb said you should hear him talk about his graphs, it makes my heart flutter.  From then on, whenever I wanted Barb to look at one of my graphs, she made a fluttering movement with her hand over her heart.