I am currently involved in a restaraunt remodel. I am daily reminded why the word "customer" begins with "cus!"

The customer, as well as the general contractor, are in a class of their own.
The GC, as disorganised as they come, is always full of helpful advice and confused priorities. For example, "when you gonna hang the chandaliers?"....and the feeders aren't run to the panel yet!
The customer is always trying to "hurry" thing along. One morning I arrived to find they had laid clay tiles during the night- and the mortar was still quite wet. Today, as I busied myself with the feeders, they quietly went about hanging the chandaliers....I don't think I ran the wires there yet!

The first instruction from the GC was "those prints don't mean nothin'."
The equipment that the prints specify is completely different from what the customer got "on special." Currently, they expect to run THEIR ice machine without a condenser coil- that should be interesting!

My point is that restaraunts, and their contractors, are a breed of their own. Sometimes I think we try too hard to keep them from burning down!