My brother Dan perfected the one arm sweep.
On this last job I just did it was a 5 sheet himacs Kohala. I put little signs on every top. I wrote a note. ” Everyone!! these are not work surfaces. If you scratch them we will hunt you down and kill you….
with a very expensive bill to re polish.” pic of a skull and cross bones. All the others said “not here either” I came in on the last day to give the custmer a bill, she paid, then I pointed out that her electrician might not know how to read. he had screws and tools all over, since the tops were just paid for I let her deal with it 
and she did. I figure if we let it be known to the others to stay off why cover them. I think it provides a false sense of protection.