Haha they even made a game about it, and its called "I hate running backwards". It's on Steam. I don't know if its from the same makers but it is in the Serious Sam universe.

Well, you and Netrisca were together, while those thousands of enemies, they were alone.

And the gun that seemed to shoot a fraction of a second before you clicked the mouse button.

...and, IIRC, desparately grasping for generated ammo to pick up while making said retreat.