By my calculations

Robert 'Bob' McGrath was South Florida University's premier astrophysicist. He was internationally renowned, and an acclaimed author of best selling 'astrophysics for the layman' books:
- Comet inside and learn.
- Meteorlright by me. And
- How 'twinkle twinkle little star' is turning kids into little morons.

But Bob was frustrated. 

'I just know EVERYTHING, I miss the joy of learning a new equation' he lamented one day to a buddy. 
'Just get all the knowledge taken out, get a lobotomy' came the reply, as a joke. 
But Bob took it seriously. 

He just re-learned 1+6 = 7.

It made him so happy he peed his pants. And the institution he now lives in punished him by strapping him to his bed without dinner.