[ in my experience when people talk a big game about all of the work they will send you, it never happens. It's almost like it's part of their game to get something for nothing.
I get them sometimes. They are connected with this designer or that architect or their cousin are about to build a 4 million dollar home atop the hollywood hills. Not once did a phone call come through. The minute they start with that, I just go to selective listening mode. The people that are really interested on helping us get work have never come out and say it. They always call and ask if its ok to pass my phone number to a friend. Luckly I haven't had too many bad clients because I hand pick them. I am done with historical homes. What a PITA. We were all fired by the architect and the owner 10 years ago because they were difficult and wanted too many things done for free too many times. We were all glad that heppened. That was the Chemosphere remod.
I get rid of them by telling them that I am a speciality contractor and I am way too expensive. I normally turn up the gas and charge a additional 20-30 percent of what I call head ache or holding hand fees If they are really really difficult. I get the difficult ones already. We are known for that.
Becareful with over charging. Many will pay it, so It can bite you in the rear if you are not careful. Don't do it for hundreds, its gotta to be in the thousands because it can drive you in sane. or like me, a freaking minor stoke. If the word gets around, all of a sudden you are doing speciality work and with that the big bucks. Thats what happen to us. I have clients wait up to 1 1/2 year for us.