Pictures:

Why was Bobby's mother concerned with he came home from school with this sheet of paper?

He came home with a black 'i'.

3158

What law is involved with marriage and family?

The Law of Relativity.

2994

Why did the push-button go to the therapist?

Each time someone pushed it, it was depressed.

2408

How did the asphalt worker react to his foot being run over by a steam roller?

He was quite impressed.

582

What kind of clothes do polar bears wear?

Polar shirts.

3202

How did people react when Joe pulled down a 'No Demonstrations' sign without getting caught by the police?

"How did you pull that off?"

1057

What is the difference between an ox and an egg?

The yoke of the ox is outside, the yolk of the egg is inside.

2668

Do you ever see herds of animals roam cities?

It's practically unherd of.

2329

Why couldn't the broken piano get into the house?

It was missing the keys.

3101

What do transport companies and movies have in common?

They both have trailers.

2193

What did the chiropractor say when he started working on a patient?

Welcome back.

2296

When is door not a door?

When it's ajar.

496