I find you can just about apply that rule to almost anyone who has the word "agent" in their job title.
Estate Agents - kill them all
Recruitment Agents - kill them all
Football Agents - kill them all
Secret Agents - run away
This is so true. If I may offer some advice, if you're looking to rent a property in London try houseshare.com. It cuts out the wankery estate agents and provided you can do some of the due diligence yourself you save a total fortune. And it isn't all just housesharing; some of the houses are completely vacant.
Well if they're vacant, just squat. Cuts everything out then.