The art of, and unfailing practice to always park a car in reverse format, so that the front end of the vehicle is poised toward the street side or driving lane.
Done to maintain a wide field of view in front and to the sides of you, and (if parked against a solid object) prevent anyone from sneeking up behind you.
Most importantly the ability to leave in a very quick manner should the need arise.
Also allows a vehicle not running a front license plate to go unidentified to Security, Traffic, & Law Enforcement personnel.
I thought we were gonna have to bail, so I parked getaway style in case the Police passed by.