My building is mixed use - multiple tenants, unrelated, on multiple floors. We have security doors to get into the floor (there's a small lobby at the elevators, on each floor) and then on our floor, an additional security door to get into our area (as half the floor is training, and they aren't allowed into our area, as we work with more sensitive info). The area I work in is relatively small - maybe 60 people, 99% of which I can recognize on sight (45 of them are on my team and I work with them regularly).
Two dilemmas come up regularly, and I'm not sure how to handle them.
One is, when I get off the elevators, I often see people standing around, looking bewildered. They are usually here for training, and likely haven't signed in downstairs (they get instructions on where to go when they sign in - it's either left or right, not difficult to follow). They often will try to follow me in (if the security doors there aren't just unlocked - which they are, often, if there's a lot of people on the floor temporarily). Do I hold the door? Direct them downstairs? Ignore them? Ignore them even when they try to follow me in? They are mostly badged (and sometimes uniformed) employees of my company, and are supposed to be on my floor for training, but they haven't followed all the rules.
Two is people I work with in our secured area. This door is ALWAYS locked, and inaccessible except with a badge. I happen to sit near the door. Is it rude to ignore it when someone's knocking on the door, especially when I KNOW they are a real, current, legit employee that's just left their badge when they went to the bathrooms or break room? Is it rude to not hold the door for them when I'm walking in and they are right behind me, with their badge, but haven't swiped it to unlock the door (since it's already open, this wouldn't have any effect - it's already unlocked).
The things I think of when I should be doing other things....