I think the Zombie must have heard the phrase ‘water weight’ somewhere.
(I keep finding woman’s health magazines in my apartment. I don’t have the heart to tell the Zombie that diet/exercise tips for humans, let alone human women, probably don’t work for him.)
In the meantime, any sitting water he gets rid of ASAP. I got a cup of water, took a sip, walked away, and when I came back he’d poured it out. And he gave me a dirty look for having left it sitting out.
On the plus side my place seems slightly cleaner. Any dish sitting out is immediately taken to the sink.