Kim's excellent post yesterday brought something to mind: As usual when Christians are taking a stand on a moral issue, there's a right way and a wrong way to go about it.
To my mind, the right (grace-filled) way is to gently and politely refuse when asked to buy Girl Scout cookies. The wrong way is to harshly lecture the Girl Scout and/or parent at your door. I'm sorry that it's even necessary to mention this, but unfortunately, too many of us have shown a tendency to do things like this in the past. And it usually comes back to bite us.
One day, years from now, we could be dealing with a generation telling us that they felt pushed away from Christ by the nasty Christians who yelled at them about cookies. Let's see if we can avoid that.