This is why I take a big backpack in every day and have to lug things back home. If you leave stuff on your desk it goes missing. For example, at my place if you left a multipack of chocolate bars on your desk to get you through the the month, if left partially open people would take one! It's not on the communal "cake" shelf that we have near the printer. Same if you bring your own stationery like memo blocks, they get depleted. I don't understand people taking stuff from peoples desks or drawers. We do have draws but we don't have locks. My colleague opposite me was on leave for 3 weeks recently, and has a bag of sugar in his drawer, for adding to his coffee. The amount of people I saw going in, taking the sugar bag with them to the kitchen and then coming back with it, while he was off! Just because he let you have sugar once when you forgot yours doesn't mean you can use it daily when he's not there . Buy your own!
I don't leave my cup at work any more after a chain smoker took mine and was using it. It had my initial on it, it's not like it was a communal plain one from the kitchen
Now I just take a coffee flask tumbler thing and take it home to wash.
It might sound petty to some but I don't like people touching/taking my stuff.
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My IT department is like this sometimes, they act like they are the gods and we are the plebs ... However they majorly messed up a systems upgrade the other week and left the whole organisation with intermittent internet outage issues for days 🫣 muahahahaha
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Bet she took all her leave days without question, though!