I fear I have made a very terrible mistake. Please accept my sincere apology, sir, for my offensive insinuations.
My family would not tolerate that sort of incivility. When my father arrives, I quite understand if you think it necessary to tell him of my poor conduct. I'd much rather you didn't, he'll be irate, but it is better than having you think that
This place makes it difficult to trust others, but I should do better to represent my family.