The restroom floor was dirty, so the cleaner had splashed detergent all over it to prepare for mopping it.
Hence, the ground was extremely slippery where there was detergent.
The sign had been meant to give warning about the slippery floor.
Sun Linan had stepped on the slippery area and fallen flat on his face.
His clothes were soiled, and in addition… why did the dirt on the ground smell weird?
Like…
Just at that point, the cleaner returned and hurried towards Sun Linan. "Sir, are you okay? Let me help you up!"
With the cleaner's help, Sun Linan pushed himself up. "What on earth is this?"
The cleaner replied, "… A customer had too much to drink and has just thrown up."
"Ugggh!" he gagged. On hearing this, Sun Linan almost threw up.
The smell on him was too much and he quickly removed his jacket. But there was puke on his trousers too.
He couldn't possibly remove his trousers as well.