Still no fresh material, eh?
Please watch Last Comic Standing on NBC
http://www.nbc.com/Last_Comic_Standing

You are on Knock-Knock level. Please learn some "Why did the chicken cross the road?" material.

Here, I'll start.
Why did the chicken tell the same tired old joke as he crossed the road?
-- Because he has male inadequacy issues and vents his pent-up anger on men he assumes are superior to him.

It's funny because it's true.