Because he wanted to be on time.
or
2 years old.
Cow: "Mooooove over"
Sheep: "Naaaaaaa."
or
Sunday!
or
but I couldn't find any.
or
1,000,001: One to change the bulb and 1,000,000 to rebuild civilization to the point where they need light bulbs again.
or
I've been framed!
or
Two, one to call Daddy, and one to get the (pick one:) mineral water/Tab.
or