Fish and ships.
or
Norse code.
or
Because 7 ate 9.
or
Seven. One to change it and the other six to sing about how good the old one was.
or
A guy who has never been hit with a dictionary.
or
"Pint please, and one for the road."
or
Two, one to call Daddy, and one to get the (pick one:) mineral water/Tab.
or