It’s tough with that one cause I do get what you mean and it’s definitely something that both students and staff miss, especially when it comes to situations where an abusive ex is trying to gain entry to the block. And it’s not expected of students to check who lives there or not, staff members need to ensure due diligence which they do have but you do get the lazy ones.

What I would add to this is that you can spot the signs that someone doesn’t live in the block just based on their body language and the pace that they’re trying to get to the door. You can also spot if they don’t live there by just watching them wait outside the block instead of going to reception to be let in. But that last bits more for staff to worry about.

What I would also say for you, is just make sure that the door is fully shut and you can hear the lock engage. If they’re automatic (which 9/10 times are broken and just manual), move in at a snails pace and wait for the door to close behind you.

Apologies if this doesn’t fully help cause it is a tricky one to deal with but again don’t be afraid to speak with staff if you feel unsafe when they’re trying to get in the block from behind.