This is a question that hits upon the lesson (reminded of yesterday) that we need to think carefully before speaking. The secretary at a school (I'm subbing as a para) had unwittingly passed along a schedule that was not relevant, one that had times and days listed out of sequence. I've noticed that other schools in this district print schedule tables this way. Marginalia was also inscrutable. Some teachers looked puzzled and asked why I was in their classrooms. One sent me to the art teacher's room; the art teacher was confused by my presence. Frustrated, I hastily replied that the schedule was all "convoluted." This got back to the secretary who felt that I had been saying that she didn't know how to do her job, and she was quite offended and wanted me to "see" the principal. I sincerely apologized and we cleared the air. It made me think of strengthening my filter. So - any similar stories of lessons learned from "foot-in-mouth" disease?