Now about that eraser throw. I do recall on several occasions waking up a drowsy student by tossing—the word choice is important: tossing—an object like an eraser or dry-erase marker onto the student's desktop, right in front of him (never a her!). So please don't picture me hurling the eraser at his head or body! I don't recall ever feeling any anger in doing so; what I recall feeling was simply a responsibility, light-hearted in fact, to bring the student back to class, since I was apparently the one who sent him off to Slumberland. Am I quite sure, though, that I remember every such occasion? Might there have been a chronic sleeper who had brought me to a point of exasperation so that some anger might have been detectable in my action or on my face? I won't claim to be above such anger, and, if Mark's memory of the incident proves in heaven to have been better than mine, I might also have to confess some sinfulness in it. Whatever the case, Mark, I appreciate your giving me the benefit of the doubt! And I'll treasure this published expression of your gratitude and of your wisdom as well.