Spinal jokes

I am thinking of removing my spine.

It's only holding me back.

Somebody stole my joke.

So I stole their spinal cord.

Errrrrrrrrr my spine doesn't work.

Eeeeeeeerrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr!

When I was young, I decided to go to a medical school.

At the entrance exam, we were asked to re-arrange letters

'PNEIS'

and form the name of an important human body part which is most useful when erect.

Those who answered 'SPINE' are doctors.

What do you call an athlete who injured 75% of his spine?

A quarterback.

You know what me and my spine both have in common? We are both not straight.