Why was the staircase so sad?
Because everyone walks on them.
Why were the twin towers mad?
Because they ordered pepperoni pizza, but instead they got plain.
What do you say to a guy with Down syndrome who’s on top of a sky scraper? "Jump!"
What do you call Stephen Hawking in a burning building?
Hot Wheels.
What do you call Dr. Disrespect on top of a building?
Diddler on the Roof.
Why did God build a stairway to heaven?
So all the disabled people will have to go to hell.
What's the difference between twin towers and McDonald's?
One had a drive thru and the other had a fly thru.