jgnat's response is brilliant!
Even while brainwashed, I used to respond similar to that. I used to make comments at the meetings about how we should be serving God out of love and not out of fear. I told them that even if the end came past our lifetime, it didn't matter because we were serving God because we loved Him and not because he promised a reward.
Those cards and things would upset me too. They have no idea how to comfort anyone. .. and they are never any help.
Renee