What I find odd is how nails are pretruding out from the dry wall when you nailing into studs unless it is some sort of prior faulty workmanship.
Hopefully your contract is worded that you are excluded from this type of damage, considering this is a normal process of the job.
A few years ago we did a job where a guy kept things on the wall although the contract clearly states to remove all items and we also told him to. A deer he had on the wall fell, breaking off an antler. He threatened to sue unless he was compensated the absurd amount of money he felt it was worth. Then our laywer sent him a copy of the contract he signed with the parts highlighted. That was the end of that although I felt bad about the situation.
If you do end up fixing it, make sure it is someone you choose. The homeowner does not have the right to just hire anyone out they want to fix it and then stick you with the bill without you knowing about it first.
Enforcer, people are like that. Most homeowners dont understand anything construction related. Since its such a small area, just do it for him and save the headache of listening to him. OR, do a change order for buying and installing a tarp over that area since I am sure its not in the contract!
