Very common asian provider’s tactic. It can be fun, since most of them are really not shy and make a point to thouroughly clean their meal before eating!
Yes, exactly. Asian providers very frequently do this, and almost universally in foreign asian mongering locations (minus Indonesia for some reason). MPs are the exception to rule, but of course the service is usually different and they frequently ask you to wash your hands so I suppose the principle is the same, given the service offered.
The absolute best way in the world to do this is in the style of a Thai soapy massage. If there was ever a fun way to get clean before and during the fun then that's it, hands down, no contest. If anyone ever gets enterprising enough to offer that here in Montreal then I'll be one of the first ones in line to go.