Calvin is feeling very stressed as his future is currently in the hands of his wife, who has been tasked with pleasing Amon.
If Amon is not pleased with her actions, or if she misbehaves, or if she doesn't fulfill any of Amon's requests and offend him, he might as well kiss his life goodbye.
The moment he realized who Amon was, he knew he had to do everything he could possibly do to earn Amon's favor.
His idiot of a son somehow got lucky enough to meet Amon and even convinced him to come to dinner, and now that he is here, Calvin did his best to please Amon.
He hired one of the best chefs in the world to come cook tonight, and he made sure that every employee working in his mansion was on their best behavior.
He even made sure to warn his daughter and wife to behave properly before Amon and to treat him with more respect than anyone.
