This message board is an electronic extension of my classroom. On the board, as in all of my classes, I encourage students to think for themselves and try out new ideas; to do that safely, we have to respect and trust each other. Therefore, I must ask that we refrain from negative personal comments or "flame wars" on the board. What sounds like friendly kidding when we're F2F (face-to-face) with each other can look hostile in writing. -- pe