Toilet issue

One day, when I walk in to toilet, what I saw is a pair of footmark on the toilet bowl, a flush toilet bowl. 

"Hello! DO NOT STEP ON THE TOILET BOWL! As an undergraduate students, this is a basic moral value that we must have, okay?! ”

I really cannot understand.
If you think the seat is disgust and dirty,
Why don't you just go to the squat toilet bowl?
What's the point to squat on the seat?!
Don't you think squat on the toilet bowl is dangerous?
Don't you think your shoes is much more dirtier than your butt?!

It's designed for us to sit on it. 

We, as a Malaysian, as a Utar-ian, a clean toilet environment has been provided for us. There are both flash and squat toilet bowl in our school. If you think the seat is dirty, please proceed to the squat toilet bowl next time.

For your own safety and public hygiene issue, 

PLEASE SIT ON THE TOILET BOWL! 

"40% of the population on the world still do not access to the simple toilet. 90% of the surface water in India are accompanied by fecal. A clean an safe sanitation is so important to us. 1.5 million children under 5 yrs old in the world die unnecessary because of lack of hygiene and sanitation."

                           --- Jack Sim                                  

                     Founder of the Restroom Association of Singapore and World Toilet Organization
                                                           

Cherish on what you have and use it in the right way. 

References: 

TEDxTaipei. (2012, November 3). Giant of Toilet Bowl：沈銳華 (Jack Sim) at TEDxTaipei 2012 [Video file]. Retrieved from https://www.youtube.com/watch?v=Iua3kHAPUPA