Forum Discussion
I'm seeing this happen with desktop computers on a residential lot. The lot has a total of four desktops and one laptop; two of the desktops are each locked to a (different) specific sim in the household. On loading the lot, it's just as likely that another member of the household is using a computer that they aren't authorized to use as it is for them to be using a computer locked to the general household. They don't appear to just be sitting there, as they have a computer-related action queued up, like browsing kid-friendly websites. (The laptop is kept in a sim's inventory when not in use, which is a pretty effective way to keep anyone else from using it!)
The household also has a butler; so far, I haven't caught the butler at any of the computers when the lot is loaded, so it looks like the locks are working in that regard at least.
I don't have Discover University, so it looks like the issue is not exclusive to the pack.