I'm not sure if that would come to relying on a cheat sheet or not. We have cheat sheets for all kinds of things and we almost always find loopholes in it. I was out on a job the other day and didn't have a simple bracket on the truck because it's something new we just started carrying, so I had to improvise. Now, my problem was solved by just using some common sense and ingenuity, but your problem is different.
Had we quoted, received signed and dated quotes back along with the required deposits, drawings back & forth, made the cans, discussed layouts and designs, made them and ready to instal them.....
THEN they lay on you about something they never told you, that's on them. I hate to say it, but this sounds like it's gonna be some trouble, unless you stand your ground firmly. Your problem is your customer left out one very important step of the entire process.
HIS permission.
Sometimes we do discuss things with landlords and many times we find things out and hafta renegotiate with the customer, but it's not your job to know every possible obstacle waiting around the corner because someone else screwed up.
In this case, they might say.... when you were here taking measurements and getting pictures for the survey and permits, didn't you notice what everyone else had ?? You can say, yeah, but I thought you read your own mall manual and had this accounted for before ordering wrong.
Keep all conversations to the idea.... he did wrong and his stoopidness does not reflect on your ability to read minds. This is his problem and unless he gets his landlord to agree to put them up as is.... he just made a very expensive mistake. DO NOT take any responsibility for his mistakes, unless you did know going in.... it was wrong.
Good Luck.............
