In one motion, the book made it to the fold of his arm and Charls freed his hands to practically snatch the receipt from Alex's. He would have also angrily stuffed it back in his coat pocket if he just didn't catch himself and so he took his time to fold it and slip it in an inside pocket. All that reminded him to breathe and by the time he faced Alex, he gave him a very polite, "Thank you."
He did not try to hide it, though: he hadn't forgotten that training session yet and it was a sour memory not only because of Alex's toying with him but he was angry at himself, as well. It was a failed training, he had failed everything and that upset him more than anything. Never did he imagine that he could allow himself to be tricked so easily.
"Fancy seeing you here, Alex," Charls went on with his impassive but haughty greetings as he flipped his text book opened again and looked through the drawings of circuit design.