Could you answer these two questions about friendship for me?

(It’s obviously a simplification and re-arrangement of the previous question I posted (Come look at my previous post, by the way, if you’re interested. ;-) ))
Do you think you, as a friend, wouldn’t ask for a certain favor, that you know the other friend wouldn’t want to do, shouldn’t do, etc.? Furthermore, if you ASK, for this said favor, do you think, if (s)he refuses, that you wouldn’t hold him/her responsible for it?