I share your angst, I really do, our DS is 1 now, and BLW just doesn't work for us, he either thinks its a toy or throws it on the floor. Nothing goes down his throat. So we have given that idea a miss, its a personal choice whether you want to perserveer with it, or try a different method .
I know that eventually our LO will be able to feed himself and it actually be a success, but for the now we are spoon feeding him, there is nothing wrong with this, yes it means that you have to use your time feeding them rather than giving them selected foods to eat (or try and feed themselves) and you getting on with the washing up etc, but you still have to be in the same room to monitor them, so I figure that by the way I am doing it, the food goes down, and I personally have less wastage and less mess!!
It is totally up to you how you tackle it. At 11 months our LO was very knowing and really did know when he was being cheeky (polite way to put it!)He is a very observant child, and quite scarily like a mini adult. from the word go, if he was doing something wrong, we have said no, some babies may not understand it, but I am of the thought that the earlier I use it, the more used to what that word means he will get!
Can I ask a question? Why don't you want to draw too much attention to it? Again, every baby is different, and you know yours best so you will instinctively know what to do
With ours if he is doing something wrong, we do say no, and keep saying it, he does get the idea in the end, and stops what he is doing! I think (and it is prob just me!) that things like this should have attention drawn to it, otherwise how else are they going to learn the boundries we would like to set? I will say no don't do that (and explain the reasons why, if he does it again I reafirm the no,and if he does it once again then I say to him, if you do that once more, you will go without such and such (obv, insert certain such and such applicable to the issue!) and then if he does it again, the such and such gets taken away. It seems harsh I know, but I just don't see how else he will learn, and if I am leanient now, then I figure it will be twice as hard to guide with these sorts of things later on! I hope that makes sense? ( I do tend to rabbit on!)
You will know what to do, and what feels right instintively, don't put yourself down for being a mummy trying to establish some boundries.