I sometimes say "I'm sorry; you are not the person I am upset with and that was rude of me." even if there is no other person; it's still true. The hard one for me is when hypo and saying something inappropriate that I thought would be okay as cheeky humor so I was wearing a smarmy smile when I said it. The apology nearly always comes across as insincere, especially if I have a hard time suppressing that euphoric grin while I apologize. I am so much fun at parties when hypo (NOT!).