collision, helm and propulsion controls had been redistributed between bridge stations, and the bridge crew was not fully aware of that redistribution. On April 10, 2018, the 5000 ton supply vessel VOS Stone unberthed from a wind platform under construction in the Baltic Sea. The vessel's master decided to put the steering in an alternative mode to perform a test of the system. Insufficient communication with the officer of the watch led to a temporary loss of control, collision with the platform, injury to three crew members, and significant damage. On April 19, 2020, an F-35A fighter jet was destroyed in a landing mishap at Eglin Air Force Base. Investigations concluded that the aircraft was misconfigured with the wrong mode of autothrottle, resulting in the aircraft becoming uncontrollable upon touchdown. Assessment Modes are intended to grab the user's full attention and to cause them to acknowledge the content present in them, in particular when critical confirmation from the user is required. This latter use is criticised as ineffective for its intended use (protection against errors in destructive actions) due to habituation. Actually making the action reversible (providing an "undo" option) is recommended instead. Though modes can be successful in particular usages to restrict dangerous or undesired operations, especially when the mode is actively maintained by a user as a quasimode. Modes are sometimes used to represent information pertinent to the task that doesn’t fit well into the main visual flow. Modes can also work as well-understood conventions, such as painting tools. Modal proponents may argue that many common activities are modal and users adapt to them. An example of modal interaction is that of driving motor vehicles. A driver may be surprised when pressing the acceleration pedal does not accelerate the vehicle in the forward direction, most likely because the vehicle has been placed in an operating mode like park, neutral, or reverse. Modal interfaces require training and experience to avoid mode errors like these. Interface expert Jef Raskin came out strongly against modes, writing, "Modes are a significant source of errors, confusion, unnecessary restrictions, and complexity in interfaces." Later he notes, " 'It is no accident that swearing is denoted by #&%!#$&,' writes my colleague, Dr. James Winter; it is 'what a typewriter used to do when you typed numbers when the Caps Lock was engaged'." Raskin dedicated his book The Humane Interface to describe the principles of a