fastfood in a game?

what if someone made a game were you wourk a burger joint (i know sounds dumb but keep reading).what if you not only have to keep your guests happy but another restaurant sends employs in with the means to get rid of you. so what do you do you grap a fryer basket and bash them in the side of the head or scoop up some of the boiling greese and splash them in the face and you throw and hit them with various restaurant objects to fend of your enemy. then you sneak into there restarant over night to poisen the food while trying not to get spotted by the guards. i have really thought this game through if anyone can help me with. so what do you guys think is it a good or bad idea?

There is actually a Japanese fast-food sim game. I can't remember what it's called, but someone who wanted to know about it could, I'm sure.

sounds kinda cool.