[alistairSH]

You could, but that really isn't any different than "I don't want to come (for some other reason)."

There's a difference between "don't want to" and "can't do".

But, we have a pretty tight-knit group of friends, most of whom live within walking distance, and due to kids, we usually just have dinner at somebody's house. We're boring white collar suburbanites, I guess.