Engrossed in a flow of online teaching, I was suddenly aware of insistent knocking. Because teaching is interrupted only for emergencies, I paused in midsentence to open the door. A student worker handed me a document that I had already accessed online. When asked, the student worker said she was told to distribute the document to faculty. Rather than place the document in either of my mailboxes, she had brought the paper directly to me. That interruption caused me to wonder anew about the physicality of teaching in the virtual world.