So what do you do when

you get the invitation to the going-away party but you only glance at it because you know your husband has all the information and so you don't read all the way to the part that says that it is a surprise and so you say to the person who is going away, "I'll see you tomorrow" and she waves at you and says, "OK" and you don't realize until the next day that she didn't know what you were talking about because it's a surprise and now you're afraid that you let the cat out of the bag and you are so sick and tired of your mouth always getting you into trouble?