A lot of those wacky screws exist solely to keep people from randomly messing with them. You have to really go out of your way the get the right tool for the job, and that's if there even is one.
Like the one-way screws holding together bathroom stalls.
Yup, I've noticed that spanner screws (the two dots) are usually found on elevator control panels. There is no reason that somebody should be able to open those up with a Swiss army knife.