Panic

This command restores critical settings to reasonable values. The affected settings all have the potential to cause confusion or degrade performance. Panic can rescue you from a variety of problems, but the transition can be a bit jarring. To execute this command, use Window/Panic or press Esc.

Panic takes the following actions:

Panic also exits from full-screen, but not from Veejay mode.

Note that if you're using a MIDI controller, after pressing Panic, the positions of your knobs (or sliders, or whatever) are no longer meaningful. To fix this, move the knobs to their default positions, and then Zero Controllers, or press Panic again.