I work for a faceless mega-corporation so naturally every inch of usable space is either currently in use or would be a violation of some company policy or another to store a bicycle there.
Thankfully it's in the middle of nowhere, but I still get paranoid about leaving it alone for extended periods of time. I'm always popping outside on my breaks to check on it.
Equally thankfully they've just finished renovations on the first floor, which has a view of the bike locker, so I can just pick a desk down there keep an eye on it throughout my whole shift.