Friday, November 10
Wikipedia kicks knowledge on the common American pastime of calling dibs on the front seat, supposedly to refer to the armed men who rode next to stagecoach drivers.
Where does it come from?
"First use of the phrase to refer to automobiles occurred in 1954 when the TV series Gunsmoke became extremely popular."
Calling out "shotgun" to obtain the front passenger seat dates back to the 1960s, according to The Straight Dope, which says that references to the stagecoach version can be found as early as the 1920s.
(Not to be confused with this)
More rules on Wikipedia, including the in-poor-taste "Kurt Cobain" variation, here.