A: Did you get the invitation to my party?
B: The invitation came in the mail yesterday.
A: I was worried it got lost in the mail.
B: Unfortunately, I can't go to your party. I wish I could.
A: I'm sorry to hear that.
B: My mother-in-law is visiting that day.
A: I'm really sorry that you can't come.
B: If I could sneak out of the house, I would, but my wife would kill me.
A: I wouldn't want that on my hands.
B: The next party you have, I promise I will be there.
A: What if your mother-in-law visits again?
B; Thankfully, she only comes once a year.