Brain transplant jokes

I wasn't originally going to get a brain transplant, but then I changed my mind.

I was about to get a brain transplant, but then I changed my mind.

I wasn't going to have a brain transplant...

But then I changed my mind.

The brain named itself, and when the brain realized that it named itself, it was surprised.

But maybe, it was a spelling mistake and the brain wanted the name Brian. We all have a little Brian in us!

Don't worry, Stephen Hawking isn't dead.

They have just got to copy and paste his memory onto a USB.