I was experiencing a challenging staffing situation in one of my earlier years as Head of School. A veteran educator and colleague, new to deepening her Jewish practice, suggested that I might be guided through the situation using Mussar, accent on last syllable. I was puzzled. What is MuSSAR? She explained, you know, MuSSAR. Something clicked, I blurted out unguardedly, “you mean, MUsser!” The Ashkenazic Yiddish pronunciation, as in, what I grew up experiencing in my Orthodox Jewish day school as a child.