Pizza

My job often requires me to make pizza. Not just that, I must make pizza, serve pizza to customers, make whole pizzas for customers, keep my station presentable, all that jazz.  Now, I'm just a small part of a bigger operation, but the amount of pizza a crowd wants around lunchtime on a Friday is nothing to shake a stick at.

So you know those video games,
Where the computer just keeps throwing enemies at you,
And you keep shooting them but they keep coming until you suffer a horrible graphic death.
You have to keep shooting them and sometimes they take more than one bullet to kill, sometimes you have to empty a whole clip to kill one.
Just a bunch of zombies continuing to come at you and attack you to trying eat your brains,
One after another.

Except instead of zombies that want to eat your brains, they're customers that want to eat your pizza.

And each clip only has 4 rounds in it,
And a clip takes 15 minutes to reload,
(don't worry though, you can reload multiple clips at once.
If you have the time to, that is.  What with all the metaphorical zombie shooting you're doing.)
And instead of getting a Game Over, you get managers approaching the station being all like
"Why the hell aren't there any pizzas? Get back to work."