Why did the chicken cross the road?
Because the chicken on the other side was calling it, and it didn't want to appear anti-social.
Having spent days and nights searching its soul the chicken finally decided that it had to cross the road and did so.
It depends on what you mean by "chicken" and "cross".
Because it wanted to show it was not chicken.
It was caught by a freak gust of wind.
It was collecting experiences for it's next book.
The chicken was late and took a short cut.
The chicken inherited genes predisposing it to cross roads.
Because it saw the "Chicken Crossing" sign.
The chicken was tired of the side he was on, therefore he crossed over.
To get his pension. You don't get it? Neither did the chicken, he wasn't old enough!
Why not? Can you just leave the chicken alone already?
Because it was the pig's day off.
To get to the Dollar Store to buy a pencil to write down a really funny joke before he forgot it!
All the other chickens were doing it, and it just wanted to fit in.
Because it had restless leg syndrome and its doctor told it to walk whenever possible.
The chicken was afraid of Spongebob Squarepants. No, let's make that Barney. 'Cause he's really frightening!
To get to the other side.