Next time you go there during a busy hour, try to look past the "mad house". Just stand there and observe how the place operates. It is quite amazing actually... brilliant procedures and processes are in place to insure quick service. Every BH employee on the floor has a specific duty with no question. The floor layout is very logical. I think the conveyor system that "ships" items from the back to the front is pretty darn neat (well designed and operated). I rarely have to wait more than 5 mins for the item to appear in front of me on the counter. Even the speaker above a line that says "Please proceed to the next counter" has a dome to make sure that only the person directly under hears the voice as to not confuse anyone else around them.
I think it would be neat just to see how things work in the back...