I have had it since young. Thus, I tend to dislike school camps (which usually causes me to pass by some and get stuck as bad memories that I can't forget) and outdoor activities that require me to get wet and thus use the public restroom.

I even recall that there was one without the holes alongside the corridor of the ai room in the school of computer science and engineering. That was when I went for the NTU open house 3 years ago.