Whenever I attend PTA meetings I seem to volunteer for something. A big something. Last year, I volunteered to chair the Cultural Enrichment Committee; this year I'm also the Hospitality Chair. Here's how things unfold. The PTA president asks for volunteers. Silence. In the midst of this very uncomfortable silence, my brain starts to run the script: good mothers volunteer at their children's school; over the years, I have volunteered far less than most because of my work schedule; I want to be a good mother; I want others to think I'm a good mother. Impulsively, dare I say compulsively, I volunteer.