My wife acts very naughty even though she drinks a little.  Recently, her parents are staying with us for two months. We have a big house. But terrible thing happened last weekend.
I went out with my wife, as usual, to the club to attend my friends birthday. After that we came home, and ****ed. She made such a noise that night, we totally forgot THOSE TWO INNOCENT PEOPLE sleeping  in the house.

Next day, that old man said, " I have seen all the things I need to see in US, now its getting bored".  And he looked at me so differently that day.  Do I need to apologize?  My wife said they will be used to in two months. Of course, New Year's party is on the way. We are more careful this time.

What would you do?