I am godparent (in a non religious way) to my friend's baby daughter. I am friend with her dh too so knwo them both, and was really pleased to be asked though I didn't expect it at all. But we are soon getting my ds christened and I have other people in mind to be his godparents, in part because I don;t think this friend would be a good godmother - she has some weird values and drinks too much and I am not sure I was her to be a big influence on the life of my ds. How do I tell her we have chosen other people - do I have to return the godparent favour?