The greasy breakfast thing was a winner for me too. First time my son came home impaired and I sat up all night with him so that he wouldn't die of his stupidity, I fixed a big greasy breakfast for him that had him heaving all day! A year later I told him what and why....he thought that was just horrible of me! I laugh everytime I look at an egg! But you're all right....forbidding is like daring them. We just have to watch carefully and when it seems that they are beginning to push the envelope you have to haul them in, sit them down and give them the old, "I'm not an idiot" speech! At least at my house it seems to cause a modification of behavior if only temporary.