Guy I'll call Filch - not his name or nickname just coz he mutters to himself like caretaker in Harry potter - is late 30s ish. Since February he's suddenly becoming like an old man. Bangs his keyboard at certain work stations, jams USBs in so hard a couple have broke, hunches over a newspaper in the break room, gives dirty looks if someone makes light-hearted comments and has snarled a couple of times at people.
Nothing HR worthy just ... I dunno ... like a zone of despair around him as one of the engineers put it.
Hope he lightens up.
The red bull can person is also back now:
Ladies or men's toilet - empty red bull can.
Cleaning cupboard - empty red bull can.
The places on the carpark tarmac - empty red bull can, one with four fag butts in hole.
Flower pot in reception area - half full red bull can with flies buzzing round.
🙄
We think it's a game as it's unlikely to be one person, but it's annoying.