Because 7 8 9.
He counted 1 Mississippi, 2 Mississippi, 3 Mississippi, 4 Mississippi...
Because he felt his days were numbered.
One baby nailed to 7 trees:)
Because 7 was mean. Get it?
Hey Microsoft, why is there no Windows 9? You've given us 7 and 8, and now you're skipping straight to 10?" "Well, to be completely honest, 7 8 9."