Nostalgia schmostalgia

So after just a bit over 10 years I went back to my high school: MRSM Taiping because my brother is enrolling there. A lot has changed: new buildings, new furnitures, new fences, but not really. New teachers too I assume since I wasn't recognized (and grateful for it). The dorms are pretty much the same as I left it, judging from my brother's. He's not in my old dorm though so I didn't get to see the insides of it so I had to settle for seeing it from the outside. I assume the dorms are pretty much similar (They have a fan in each "room" these days). The dining hall was kind of a surprise though. Some time in the last 10 years they had it fenced up floor to ceiling. They put up this wire mesh fence all around it so it kinda looks like a cage. I wonder what is it for? Probably some primate trouble.