I agree! I have many friends and I feel like I am being rude when I am in the middle of a good round or playing wih other friends and I can not explain why I am declining the invite.
Even a drop down box with with 4 choices would be sufficiant.
i.e.
In the middle of a good round
Be there with in five minutes
Another day or time
Sorry at work and cant play a timed round
Just some ideas.
dacsyr1