There are other things to be worried about too not just the things you see and perhaps these things are worse because you don't see them and may not be able to get the answers.

Is the wiring safe?
Do the sprinklers work?
Are there adequate evacuation procedures?
Are the staff fire drill trained?
Are there enough fire exits?
Are they blocked/locked?
Does the fire alarm work

I could go on but just pointing at the smokers is only scratching the surface of the mall problems.