9 1/2 Out Of Ten

Blind woman, blind woman shooting a gun.
Better duck and cover, better duck and run.
You might do anything, you might do anything,
you might do anything at any time.
You might do anything at all,
but your friends can predict your behavior 9 times out of 10;
why can't you?
9 1/2 times out of 10 you do exactly what anyone would know you'd do.
Anyone at all.