Down on the bar you have the "Turn" button.
Then, in many sub screen you have a "Done" button, which is not always found at the same place, but sometimes very close to the Turn button.
It is very easy to click on the Turn button insated of the Done button.

- Maybe the Turn button should be replaced by the Done button (Turn being then done only at the main interface)
- Or the Done button should always be placed at the same spot in the screen.

Just a suggestion though... I can learn to live with the interface as it stands.