Neighbours take down rubbish yesterday afternoon, spilling smelly liquid all over communal hallway. They don't bother to clean it up.
They are up all night having a small party, running around the flat and slamming doors, waking us up about five times in the night. Finally go to sleep (I assume) about 11 in the morning.
Meanwhile another neighbour mops two flights of stairs and the rest of the hallway.
Scummy neighbour hasn't been out to check if the mess has been cleared or to clean it themselves. They're up again watching tv, laughing and shouting, evidently recovered from their nightly exertions 
These are "young professionals" (their term). Am I right for thinking this is code for playing at being a grown up but not really there yet?