I was in my usual Macdonald's job as a cashier. I was helping the people in their orders when I told my coworker I needed to go to the bathroom I went to the bathroom and saw a spoiled brat looking girl, I try to ignore her but she suddenly spoke to me "Hey, you! Why does this sink have a dirty thingy in it?" ; She said to me. I looked over the sink and it's just a little stain. I sighed annoyingly "It's just a little stain, ma'am. Relax." I quietly said, rolling my eyes a bit.