and let's all encourage wayward mathematicians to not do this, it's just not in the spirit:
Pie, Not Pi
[...]two teenage boys in Normal, Ill., are accused of turning the occasion into a crime. They allegedly knocked on a door, asked the woman who answered if she was familiar with the mathematical concept of "pi" ? then hit her in the face with a "p-i-e" and ran.
3.14 and the rest