On the first day of class, the instructor told us, in no uncertain terms, how he felt about phone calls.
"I have a phone in my office only because the department requires me to have one," he explained. "You can call me, but I won't answer. I just have a thing about disembodied voices. If you need to talk with me, make the effort to walk over to my office."
The irony here? The instructor's class was Models Of Communication.