Crazed gunman? Come back later. Crazed gunman with a kid? Come back later. Crazed fugitive gunman with a warrant out, with a kid, threatening to kill police? Let them settle down, come back later.
There was outrage in my town over a standoff with a guy (with kids) who was having attempted to be served on him by the cops for the dozenth time after a year on the lam, for driving drunk and unlicensed while out on bail for a previous serial drunk-driving arrest. He shot at the cops, screamed that he wouldn't be taken alive, and the cops secured the area, and the guy shot himself in the head. People said they should have left and come back later.
Makes a lot of sense.