What i've tried before is usually after dinner with clients, will request to go back hotel for 15 mins (excuse is to reply some urgent emails) first..
then webcam wif OC for 10-15 mins and switching off lights n changing into sleep clothes at e same time, so its an indication to her tht i m gonna sleep..
So after 5 mins, say gd nite, switch off com, and change swee swee then chiong to KTV n meet clients..
If straight frm dinner to chiong without any possbility of going back hotel first (e.g. not in the area, out of way), i will start smsin OC during dinner that i m getting drunk... so if no report later, dun be worried (must use worried, not suspicious or u will feed her mind again..)
Works so far...