In recent films and TV shows about unplanned pregnancy, the heroine almost invariably decides to have the baby.
Rarely were missions that resulted in unplanned outcomes—called “dryholes” in frontline lingo—briefed in any detail to us.
Technology has actually made this kind of unplanned traveling easier.
1670s as a technical term in perspective drawing; 1706 as "drawing, sketch, or diagram of any object," from French plan "ground plan, map," literally "plane surface" (mid-16c.), from Latin planum "level or flat surface," noun use of adjective planus "level, flat" (see plane (n.1)). The notion is of "a drawing on a flat surface." Meaning "scheme of action, design" is first recorded 1706, possibly influenced by French planter "to plant," from Italian planta "ground plan."