Oh man March of the Penguins?
I was playing Half-Life 2, amidst Ravenholm, standing atop a roof, waiting at a gutter and headshotting some zombies. I run out of shotgun ammo. No worries, I use my pistol. Uh oh- gone. 357? Exhausted. SMG? You wish.
Grenades! I unholster one grenade, rolling it down the gutter right into their faces, leaving a flaming wreck and impeding their process. I go into the elevator now that it's arrived, however, there's a black headcrab there. Right as it jumps up and attacks me while I have nothing to use but a crowbar, my entire family screams, because of the scene where that thing eats the penguins.
I'm like "JESUS CHRIST" and I run out.
Unfortunately there was a fast zombie at the bottom of the elevator who kills me.