Charlie went completely still as the man raised a finger to point at him and said something frantically, possibly in a yell. The look on his face was what Charlie would describe as a "deer in the headlights" expression and, he could have been imagining it, but he thought he detected anger.
find him. Die... done die were the first words Charlie could make out after he realized that some of those lip shapes had been in English. The words did nothing to calm his fear, or the sharp need to get as far away from the dead body as was human possible. The man was speaking in some mixture of English and whatever other language he'd been using before but the word combinations weren't grammatical sentences and with all the switching between two tongues, it was especially hard to Charlie to decipher what words were being said. "...I am here... hurt you.
He decided he'd had enough. He had two options: stay here and try to distract this man as long as he could until someone else showed up or make a run for it and try his luck finding somewhere to hide. Since his previous attempts at distraction appeared to have failed and, at this hour, it seemed very unlikely that anyone else would show up for a swim for a while, he realized that running was his best chance.
He didn't think about it; just pivoted on the spot and made for the door with all the speed he could muster. In his haste, he forgot about having dropped his coffee earlier and slipped in a small puddle of the caffeinated liquid. His feet flew out from under him and gravity gripped him tight, pulling him down to the shining tile surface of the floor. The last thing he saw was the large sign posted on the wall which depicted a running human form with a big red X superimposed on it. His last thought was that the sign was put there to mock him, and then he was out cold.