People who decide questionmarks are beneath them and use a fullstop after their questions instead
Do-you-want-to-restart-or-be-bugged-forever-dialogs a la windows
If you bother implementing an event for when somebody drops a file in the taskbar, couldn’t you have implemented what a user likely would like to do with that file instead of a you-can’t-drop-that-file-here-dialog? Why not just act like the file actually was dropped in that program’s window and be happy?