I have found the Mormons to be more pleasant to deal with than the JWs who call at my door:
- at least the LDS will take a polite "no thanks" for an answer. They do this happily, too, and for the right reasons
i.e. out of respect for your feelings - not as an excuse to run away (like the JWs will do as soon as they detect that they have encountered somebody who is going to prove to be a little too hot to handle!)
And, yes, the Witnesses are quick to pick up on an "Apostate." I once made the error of telling a pair of them the I "probably knew more about their religion than they did." On reflection, that may not have been an error, actually; as they sure turned and ran very quickly!
Bill.