I went to Tom Hadley's session last SHARE (entitled "LAN 101"), and he was the moderator for this open question and answer session. Much of the goings-on here was WAY above my head, or applied to strange configurations that we aren't considering at back at my own shop (oddball gateways and routers, network management packages, other stuff).
I clearly remember one man who raised his hand and asked a question regarding a couple of his BARs and the Novell operating system. The room was silent for a moment, and Tom Hadley asked "What's a BAR?" The guy in the audience looked sheepish for a second, then grinned and replied "Uh, Big Ass Ring".