This is my institution's concrete fence.
As you can see, it is heavily barbed-wired.
See, the safety of the students staying in the hostels is top priority. We do not want intruders to come breaking in our territory, do we?
But hey, wait a minute...
There's no barbed wires OUTSIDE the perimeter of the institution!
I'm so confuse!
Are the barbed wires there to prevent weirdos to crash into our hostels?
OR, are the barbed wires there to prevent STUDENTS from making an escape on a Saturday night?
Perhaps students getting raped by outsiders are a waaay better worst-case-scenario than students getting hit by a car as they make their escape.