Ok.

If you have been to this Tar Chong in Bdr Puteri, you shld noticed that there is a plastic made door curtain dividing the kitchen and eating area.
Take a closer look, the curtain is long and it is touching the floor.

Those workers that serve the food, they never push the curtain aside when they were walking through that door with the tray in their hands.

So as they walk through the door, the curtain will just slide along from the top to the bottom, touching the food in the tray. The bottom of the curtain is black and moldy.

If 1 time only, ok lah ... forgive him. But it happened throughout when I was there.....