Agent addenda:  Over the years, before I pretty much stopped altogether, reading friends' scripts and friends of friends' scripts,  I also had the caveat, "I'm critiquing your script.  Don't think to use me as a conduit to my agents.  I won't asked them to read it.  I broke this rule only once and did so on my own initiative, not at the request of the scriptwriter who knew nothing about until after the fact.  I put my rep and credibility on the line because it was the only script I ever read that I thought an agent should actually see...It was very good...So I called my agent and asked if he would read it.   He was a top agent at a top agency. He said,  "Well, if a writer of your caliber thinks that highly of it, I should read it."  I didn't have to worry about my credibility.  The agent never read the damned thing.  Never heard about it again.  It was his loss.  It's still a great script.  But I should have known...they're not looking for new talent, they're only looking for HOT new talent that's an easy sell.