Sorry I cannot attend your party but somebody died, I have to attend their funeral,police are describing the death as unsuspicious so anyway: I can't go.
The solitary purpose of an Excuses Card is to extricate you from a social obligation. Just send a wrongcard and let me tell lies on your behalf. See? Your conscience is clear. And my conscience? I don't have one yet but I promise that a conscience is the first thing I'm going to buy when I'm rich.