I was wondering, as I tend to do, which is the nicest way of two choices when saying goodbye to someone to go to class. By these, I mean saying that you will let them get back to whatever work it is that they're doing, or that you have to go to class. I know there really isn't much of a diff between the two, but I like to analyze the phrasing of things and whatnot, and it occured to me to wonder of the two, which sounds nicer to the person being bid adieu. Does a person feel it's nicer to have to go, or is it nicer to say that you realize they may be busy and you wish not to bug them anymore (regardless of whether you may be or not). *ponders*