Cornered, and about to die. (Click picture for larger version.)
Let us assume, for a minnit, that you are a cold-hearted killer, with a gun, and you're being chased by two cold-hearted killers, with guns.
And let us assume you run into a building, as for example a green house.
Here's what you do. You stop immediately, step to one side of the door, and hunker down on your knees so that anyone running in through the door - as for example your pursuers, will look around at eye level and not see you.
And then...you just shoot them. Bang for the lead guy, bang for his associate. From three feet away, you can't miss.
What you do not do is run to the other end of the building, and crouch down in the middle of the back hallway, so that your two pursuers can come at you in a pincer movement, trap you between them, and then shoot you down.
That's what happened to Steve Ihnat in the Felony Squad episode Target. Felony Squad ran from 1966 to 1969, and starred Howard Duff as Det. Sgt. Sam Stone and Dennis Cole as Det. Jim Briggs.
In Steve's episode, Target (Season 1, episode 24, aired Feb 20, 1967) Will Kuluva plays a mobster coming back to town to testify against the man (Steve as Vic Durant) who took over his operation. Harry Majeski's pretty young wife is played by Angelique Pettyjohn, whom Star Trek fans might recognize as the tall blonde fighter who takes on Captain Kirk in "Gamesters of Triskelion".
It's all a ploy, though. Instead of testifying against him, Majeski wants to kill Durant...and because Durant did not follow the excellent advice given at the top of this post, he succeeds.