restaurant simulator

Maybe there is already one out there but if not someone should come up with a restaurant or hotdogger simulation game. One that incorporates all aspects. Searched hard for one before I opened mine but couldn't find one.

From my experience in some rather busy restaurants (notably Hometown Buffets), I've come up with an idea for a customer based game. You have to go to the bathroom, but have to find the bathroom entrance and a path there that isn't blocked by waitstaff, bus staff, small poorly supervised children, customers whose seats are as far back as they can go, etc. There's a meter going up, and the object is to get to the bathroom before the meter reaches the top and you wet yourself.
 
As far as running a restaurant, I tried Diner Dash for awhile, but that feature of having to match customer clothing to the seat colors ruins it for me.
 
Bart
(note: I've never run a restaurant, but I HAVE been a waiter).

A game like that would be really helpful in running my imaginary hot dog cart business. 
 
Maybe all us imaginary hot dog cart owners can get together for the design?  Each level gives you another cart to run?  I like it!

Kind of a SIM-CITY, or M/S FLIGHT SIMULATOR sort of individual operated game???
 
  Maybe be able to switch the main theme from fine-dining- to cart- to BBQ Smokehouse- to school cafeteria to offer "levels of complexity"???