Should clicking outside of an alert confirm acceptance?

I have a several alerts which are effectively modals. When the User clicks OK, they are accepting a specific action.

For example, in the screenshot below, the User accepts that pressing the back button once more will force quit the app.

(Now reads: Press the back button to force quit the application)

When the User clicks in the area outside of the alert, the alert is then hidden.

Should clicking the outside area effectively do the same as clicking the OK button? Or should it just hide the modal?