You have excess visits by cleaning lady or / and security
whichever shopping centre you choose around that area .
How about
Century Plaza in Victory monument ?
It's only 4th stop from Chidlom by BTS .
I have never seen any cleaning ladies or security guys ( nor cruisers
) in any of many toilets ( from B to 6th or 7th floor )
They open late as it's a cineplex .