- Click the Apple Menu
- Hold Shift, and notice that the 'Force Quit...' menu item has changed to 'Force Quit [frontmost app name].'
- Select 'Force Quit [frontmost app name]' to force quit the Application.
[robg adds: Beyond relaunching the Finder, I can't think of many situations where this would be useful: typically if an application is stuck so badly that you wish to force quit it, it's not going to respond to menu clicks when it's the frontmost application.]

