Just be honest with them.
One today he just laid still and wouldn't cooperate when I asked him what he likes. I laughed out loud looking him straight in the eyes. Telling him about my happiness and you laying there like a sausage hilarious.
He then kept saying for me to lead the way so I wanked him.
He looked zonked out falling asleep.
Funny.... He enjoyed still the oral until I just wasn't trying. Telling him that I have got a lot to do after him. Plus that I said I have alot of regulars so if he doesn't come back it doesn't matter.
Clients no long get in to my frustration feelings. I rebuke themwith confidence. In the end he left thank goodness.