As above!
I have many great clients, who I have many a chats to. They make drinks and offer biscuits n some even make a sandwich from time to time. As much as I may say they are friends as such,,,,,,,they aren't and never will be! Ag the end of the day, we operate our business how we choose to do so and they employ us as a window cleaner. When ever that wont suit them any more, for what ever particular reason,,,,they will fire you.
You have to realise that it is never personal and never will be, unless your slack who's shackled up with his customer
(well I think its Matt anyway)