This was share by my brother and happened today.
I was about to pray, and heard noise coming from the ablution section of the prayer room, so I looked at the ablution place and saw three guys (believed to be Chinese nationality based on their thick accent), one of them seems to understand when I and another Muslim guy told them that it wasn’t the place to urinate. But two of them just ignored happily pulled out their disgusted private and shoot away happily on the wall (ablution section).
Not happy, with my bare feet, I walked out of the prayer room, and thank god there was an Auxiliary Police coincidentally walking towards me. Asked him for his assistance to handle the situation, when one of the happy shooter walked out.
After performing my prayer, walked out of the prayer room and still saw these happy shooters, with no regards and respect for other religion, still with the Aux Police and few MRT personnel. I hope MRT is smart enough to handle this kind of case.