Ah, the Smoke Alarm Supplication Dance. Great term. My wife and daughter had the same issue. They like to cook and can tomato sauce. Our smoke alarm would go off very easily - lots of false positives. One day my wife is vacuuming the hall and the motor in the vacuum cleaner overheats and starts putting out thick, black smoke right under the smoke alarm. Nothing from the smoke alarm... Needless to say we quickly replaced both the vacuum cleaner and the smoke alarm and made certain to get one with dual sensors...