My roommate installed a new tire on her bike and kept the spare in the dining room near the balcony. We noticed yesterday it was gone, and of course, she blew up and blamed me originally.
Anyways, we thought maybe my brother did it so we asked him when he woke up and he said he didn't touch it either. Which means someone entered the apartment somehow without us knowing and took it.
It may have been maintenance, we had an order in to fix the soap holder on our bathroom wall for like the 5th time, and they have keys to every apartment and can enter whenever.
Really unnerving tbh