We have a little problem at work. Small office, 14 people, 2 toilets are unisex (one on each floor). Someone hasn't got their toilet manners sorted out. To be frank, someone is doing poos and leaving unpleasant skidmarks. Not only is it not nice to use afterwards, the cleaner isn't happy about this either (and I understand this), especially as she also has another office job with us later in the day so is really part of the team, not just anonymously popping in when no-one else is here (still not nice to do anyway). There is a toilet brush in each toilet (nice and clean to use).
Can't put up a sign as clients also use these loos (another reason for people to clean up after themselves if they make it dirty).
I guess I need to do an email round - but for the life of me I can't think of how to phrase this without offending everyone else who doesn't need to be told basic stuff like this!