"Hello Mom, this is Mark Bingham" said a passenger in a phone call from the hijacked Flight 93 on 9/11. Who uses their surname when talking to their own mother???
http://www.historycommons.org/entity.jsp?entity=alice_hoglan_1
However, even his own mother appears to have found what he said bizarre. From the timeline entry:
Alice Hoglan finds it strange that he has used his full name to introduce himself. [Pittsburgh Post-Gazette, 10/28/2001] “He was so flustered, I guess, giving me his last name,” she will later comment. [ABC, 9/11/2001] “I remember being amused that he used his last name,” she will say. [San Francisco Chronicle, 9/10/2003]