Because it's too far to walk!
or
He got caught peeping on a test.
or
A robber ducky.
or
He was catching all the chickens!
or
Let's get crackin'!
or
A bluebird!
or
Because they kept saying "bach bach"!
or
It broke the law of gravity!
or
To get to the other size!
or
So he could grade his eggs.
or