Maybe something like O.M-A 8.1.13 saying.. EFB must be stowed for Takeoff and Landing..?
Eh? Are you telling me that there are brain donors that will leave the laptop still hung on the window opening handle for take off and landing? If so, maybe a warning letter is worth it, but better yet a whack on the head for being stupid.
That aside, what is it about our colleagues who I shall name the "special squad", these are the individuals who like to report or chastise their fellow co-workers on the flimsiest of pretexts, more often than not hiding behind an asinine rule or regulation that was written by stupid people so that equally stupid people can engage in stupid rule bound behaviour.
I despair that there are people with so little between their ears that they think leaving a 1kg metallic missile unsecured on a handle is an acceptable act, but I'm equally appalled that there would be such a lack of communication and CRM skills that would lead to a warning letter being issued.