see: http://code.google.com/p/pharo/issues/detail?id=1865

Problem when canceling the quit of an image.

Pharo image: PharoCore
Pharo core version: 11177
Virtual machine used: Squeak 4.2.2beta1U.app

Steps to reproduce:
1. Cmd + Q to quit
2. When the popup brings, select cancel
3. Theere you will have the error BlockCannotReturn: Block cannot return

I attach PharoDebug.log

Cheers

Mariano