So the building's front door has a coded keypad to unlock it @Snowie 

Then you go past his room, a second one, and there is a waiting area, bathroom staff room, and upstairs, which has more rooms. 

It's embaricing because his room is right at the front door and you can hear people enter the building and enter the pin. It's so embarrassing because I get there early to try and undo the door and I can't. I try a few times and then I give up. I feel so annoyed because then he thinks I'm not there and also goes over with the other session as he didn't know I'm there. So then I feel bad. 

This lock is bigger than Ben-Hur. It's just four numbers and a hash and I can't do it. I don't know why. It's stupid I'm stupid.