However, Ye Jian went in. The two workers in charge of maintenance came out of the bathroom with tools in their hands. They even asked the cleaning lady at the door to go with them to get some tools.
There was no one at the door and no passengers inside. The four young men looked around with their hands in their pockets before walking toward the bathroom.
In front of the sink in the middle of the men's and women's bathroom, the young man known as the boss whispered to the leanest one among the four of them, "Guard the bathroom and don't let anyone in."
They needed someone to keep watch. If he found anything, he would be able to inform them immediately. This was the vigilance of the pickpockets. They were used to working together like this.