Any haggling, I won't tolerate it at all lately. They can actually pay (they got enough funds/money), but they are testing you to see how low you would stoop down to prove you were a verified slug, sucking a cock for ?20. I bet this guy goes to his nice pub, holidays, pay for his gym, nice takeouts and he won't start asking them to throw in freebies. Get it? This is not an attack on people who does this type of service, but my own personal take on haggling. It seems that they want you to take less money so that they can fund their other normal pleasures in life. Why do you subsidise him unless you're a charity?