Keyboard Shortcuts during iChat Screen Sharing

Are there alternate keyboard shortcuts for ending a screen sharing session? The menu bar lists ^ ⎋ for achieving this (⎋ is the power button on your computer). However, I'm stuck in a really annoying middle ground.

Actually, the symbol that you're referring to references the "Esc" key.

So, by pressing ^ ⎋ (Control-Esc) you can end the Screen Sharing session without asking for control of the mouse.